Scale Factor
Percent Change
Tax/Tip
Markup/Discount
Commission/Interest
100

What is the formula for determining scale factor?

new/original

100

What is the formula for percent change?

change/original
100

You drive through Wendy's and you order is $7.12 before tax. If the food tax is 7.6%, what is your meal price after tax?

$7.66

100

An item is marked at $15 on tuesday, but on friday it is marked as $9. What is the percent discount?

40%

100

If your total sales for the month totaled $2000, and your commission rate is 15%, how much did you make in commission?

$300

200

A blueprint for a building has a scale of 

4 inches: 15 feet

What is the scale factor as a percent?

375%

200

The number of students in the class goes from 27 at the beginning of the year to 24 by the end of the year. What was the percent decrease? Round to the nearest whole percent.

11%

200

Michael goes to Mi Ranchito to eat, and his meal before tax and tip is $11.54. If the food tax is 8.5% and you want to leave a 15% tip, what will the final price be?

$14.25

200

Walmart has an item that is normally marked at $65, but is currently on sale for 15% off. What is the sale price?

$55.25

200

If you take a loan from the bank for $8000 at an rate of 3.5% over the next 7 years, how much will you pay in interest?

$1960

300

If you had a sheet of paper that was 8.5 inches long and 11 inches wide that you wanted to enlarge to 21.25 inches long and 27.5 inches wide, what would the scale factor be as a decimal?

2.5

300

The new game that you want is is normally priced at $65, but you get an employee discount at Game Stop and it only costs you $50. What is your percent discount? Round to the nearest whole percent.

23%

300

If you order a meal that is $17.56 before tax, and the food tax is 8%, how much will you pay for tax?

$1.40

300

You see an item that is normally priced at $124, but it is on sale for 20% off. If the sales tax is 8%, what is the final price of the item?

$107.14

300

If your commission rate is 9% and your commission for the month was $4000, what was your total sales?

$44,444.44

400

What is the scale factor from figure A to figure B? Write your answer as a percent.

400%

400

You got a 45% in math the first 9 weeks, and a 85% the second 9 weeks. What was the percent increase in your grade?

89%

400

Your meal at Red Lobster costs $22.40 before tax and tip. If you want to leave a tip of 18% and the food tax is 7.5%, how much will you pay for tax and tip combined?

$5.71

400

A store is selling an item for $55, but they mark up the item 125% before they sell it. What is the price of the item before the markup?

$24.44

400

If your total sales for the month totaled $750, and your commission was $45, what was your commission rate?

6%

500

The figure below is a scale drawing of a rectangular room. The scale is 200mm: 10ft. What is the area of the actual room?

32,400 ft2

500

If a businessman makes a salary of $75,000, then gets a raise of $15,000, what is the percent increase in his salary? 

20%

500

You and two friends are going to eat at Olive Garden and split the bill evenly. The total bill before tax and tip is $45.86. If you all want to leave a 20% tip and the tax is 7.5%, how much would you pay for your meal?

$19.49

500

The wholesale price of an item is $24. If Walmart then marks it up 45%, then has a 10% sale on the item, what would the final price be after a 7% sales tax?

$33.51

500

If you take a loan from the bank for $15,000 at an annual interest rate of 4.5% over the next 48 months, how much will I have to pay back in total?

$17,700