Write each percent as a fraction with a denominator of \(100\).

1. \(33\%\)

2. \(6\%\)

3. \(160\%\)

Change \(35.2\%\) to a decimal.

Write each percent as a decimal.

1. \(37\%\)

2. \(68\%\)

3. \(120\%\)

4. \(0.8\%\)

Change \(0.5\%\) to a decimal.

Write each decimal as a percent.

1. \(0.27\)

2. \(4.89\)

3. \(0.5\)

4. \(0.09\)

5. \(3\)

A softball player has a batting average of \(0.650\). Write this number as a percent.

Write each percent as a fraction in lowest terms.

1. \(19\%\)

2. \(45\%\)

3. \(36\%\)

Change \(4.5\%\) to a fraction.

Change \(32\frac{1}{2}\%\) to a fraction.

Change \(\dfrac{7}{10}\) to a percent.

Change \(\dfrac{3}{8}\) to a percent.

Change \(\dfrac{5}{12}\) to a percent.

Change \(2\frac{1}{2}\) to a percent.

What number is \(15\%\) of \(63\)?

What percent of \(42\) is \(21\)?

\(25\) is \(40\%\) of what number?

What number is \(43.5\%\) of \(25\)?

What percent of \(78\) is \(31.9\)?

\(34\) is \(29\%\) of what number?

The American Dietetic Association recommend eating foods in which the number of calories from fat is less than \(30\%\) of the total number of calories. According to the nutrition label, what percent of the total number of calories are fat calories?

What number is \(15\%\) of \(63\)? (Use proportions.)

What percent of \(42\) is \(21\)? (Use proportions.)

\(25\) is \(40\%\) of what number? (Use proportions.)

On a \(120\)-question test, a student answered \(96\) correctly. What percent of the problems did the student work correctly?

How much HCl is in a \(60\)-milliliter bottle that is marked \(80\%\) HCl?

If \(48\%\) of the students in a certain college are female and there are \(2,400\) female students, what is the total number of students in the college?

If \(25\%\) of the students in elementary algebra courses receive a grade of A, and there are \(300\) students enrolled in elementary algebra this year, how many students will receive A’s?

Suppose the sales tax rate in Mississippi is \(6\%\) of the purchase price. If the price of a used refrigerator is \(\$550\), how much sales tax must be paid?

Suppose the sales tax rate is \(4\%\). If the sales tax on a \(10\)-speed bicycle is \(\$5.44\), what is the purchase price, and what is the total price of the bicycle?

Suppose the purchase price of a stereo system is \(\$396\) and the sales tax is \(\$19.80\). What is the sales tax rate?

A real estate agent gets \(3\%\) of the price of each house she sells. If she sells a house for \(\$289,500\), how much money does she earn?

Suppose a car salesperson’s commission rate is \(12\%\). If the commission on one of the cars is \(\$1,836\), what is the purchase price of the car?

If the commission on a \(\$600\) dining room set is \(\$90\), what is the commission rate?

If a person earns \(\$22,000\) a year and gets a \(5\%\) increase in salary, what is the new salary?

In 1986 there were approximately \(1,793,000\) arrests for driving under the influence of alcohol or drugs (DUI) in the United States. By 1997, the number of arrests for DUI had decreased \(17.6\%\) from the 1986 number. How many people were arrested for DUI in 1997? Round to the nearest thousand.

Shoes that usually sell for \(\$25\) are on sale for \(\$21\). What is the percent decrease in price?

During a clearance sale, a suit that usually sells for \(\$300\) is marked "\(25\%\) off." What is the discount? What is the sale price?

A man buys a washing machine on sale. The machine usually sells for \(\$450\), but it is on sale at \(12\%\) off. If the sales tax rate is \(5\%\), how much is the total bill for the washer?

A man invests \(\$2,000\) in a savings plan that pays \(7\%\) per year. How much will be in the account at the end of \(1\) year?

A farmer borrows \(\$8,000\) from his local bank at \(12\%\). How much does he pay back to the bank at the end of the year to pay off the loan?

A student takes out an emergency loan for tuition, books, and supplies. The loan is for \(\$600\) at an interest rate of \(4\%\). How much interest does the student pay if the loan is paid back in \(60\) days?

A woman deposits \(\$900\) in an account that pays \(6\%\) annually. If she withdraws all the money in the account after \(90\) days, how much does she withdraw?

A homemaker puts \(\$3,000\) into a savings account that pays \(7\%\) compounded annually. How much money is in the account at the end of \(2\) years?

If \(10,000\) is invested in a savings account that pays \(6\%\) compounded quarterly, how much is in the account at the end of the year?

The pie chart shows where a group of freshmen students live. Use the pie chart to answer the following questions:

1. Find the total number of students surveyed.

2. Find the ratio of those living in the dorms to the total surveyed.

3. Find the ratio of those living in their parents’ homes to those living in apartments.

The pie chart shows the market share for different digital movie companies.

1. How many people in the survey stream digital movies from Netflix?

2. How many people stream their digital movies from Apple and Comcast combined?

A recent study found that Americans spend just over six hours per day on social media sites. Construct a pie chart that shows the amount of time in a day spent on social media.

Construct a pie chart from the information in the table.