Percent of Change

Kyla and her parents went out to dinner. The cost for the family’s dinner was x dollars. The amount of money her parents left the waiter, which included tax and a tip, can be written using the expression 1.24x. What could this expression mean?

• The tax and tip together were 24% of the total bill.
• They left the waiter $1.24 for tax and tip.
• The tax was 24% of the bill, and they left the waiter a 1.00 tip.
• They left the waiter $.28 for the tax and tip.

Comics Are Us is having a sale on comic books. If you purchase one comic book at full price (100%), you can purchase a second one at a 25% off, and a third comic book for a 50% discount off the original price. Which expression shows the cost of buying THREE comic books if the original price of each comic book is c?

• 1.25c
• 0.75c
• 2.25c
• 1.75c

A store raised the price on watermelons 12%. The original price for each was “x”
dollars. Which expression shows the new price of the watermelons?

• x + 1.12
• x • .12
• x + .12x
• x + .12

Ai'yanna bought a sweater at the sale price of $30. The original cost of the sweater was $40. What percent represents the discount that Suzanne received when buying the sweater?

• 15%
• 25%
• 10%
• 50%

A radio station awarded prizes to the top three winners of a contest. The first-place prize was $2000. The second-place prize was 30% less than the first-place prize. The third-place prize was 30% less than the second-place prize.

• 1st: $2,000
  2nd: $1,400
  3rd: $980
• 1st: $2,000
  2nd: $ 1,970
  3rd: $1,940
• 1st: $2,000
  2nd: $ 1,630
  3rd: $300
• 1st: $2,000
  2nd: $ 1,430
  3rd: $500

Devin is buying concert tickets. The concert tickets have a regular price of $42 each. Devin has a coupon that gives a 5% discount off the regular price of the tickets. The website he uses to buy the tickets charges a 10% fee for purchasing tickets. The website’s fee is based on the original price of the tickets before any discounts. What is Devin’s total cost, in dollars, to buy 2 tickets, including the discount and the website’s fee? Round to the nearest dollar!!!

• $50
• $84
• $82
• $88

Joey makes $10 per hour plus a bonus of $20 a day. Asia makes $8 per hour plus a bonus of $20 a day. One Saturday, Joey worked for six hours. If Asia made the same amount, how many hours did she work?

• 5 hours
• 13 hours
• 8 hours
• 10 hours

You and your friend decide to go to Red Robin to eat. You are both part of the rewards club and receive coupons in the mail. You have a coupon a coupon for 10% off the total bill. Your friend has a coupon for $5 off the total bill. Which coupon should you use if the total bill was $25.40?

• 10% off
• $5.00 off

Anna saved $25 in a jar each month for 2 years. She spent 75% of her savings on
a computer. How much money did Anna have left in the jar?
**Hint: there are 12 months in a year.

• $525
• $150
• $300

Evan has a summer job to pick berries on a farm.
- He earns $3.00 every 15 minutes that he picks strawberries.
- He earns $3.40 for every 15 minutes that he picks blueberries.
- He picked strawberries for an hour and blueberries for 45 minutes.
How much money did Evan earn?

• $22.20
• $6.40
• $8.00
• $12.50