7.RP.A.3 Percent Problems

When Juan got his puppy, she weighed 8 pounds. Now that she is 1 year old, her weight is 60 pounds. What is the percent increase in the puppy's weight?

• 67%

• 87%

• 550%

• 650%

The tennis team is selling tickets to a car wash for $6. When they do not sell very many tickets, the team decreases the price 25%. What is the new cost of a ticket?

• $1.50

• $2.50

• $3.50

• $4.50

Irene thinks she has space for a 45-inch-wide bookcase. It turns out that she only has space for a 40-inch-wide bookcase. What is the percent error in Irene's measurement?

• 11.1%

• 12.1%

• 12.5%

• 13.5%

On Thursday, 30 students went to after-school tutoring. On Friday, 6 students went. What is the percent decrease in the number of students who went to tutoring?

• 20%

• 80%

• 400%

• 500%

Mr. Krogman usually prices the umbrellas in his store at $8 each. However, on rainy days he increases the price by 75%. How much does he charge for an umbrella on a rainy day?

• $2

• $6

• $9.38

• $14

Last year 80 students signed up for a summer trip to Washington, D.C. This summer 50 students have signed up to go. What is the percent decrease in the number of students?

• 30%

• 37.5%

• 60%

• 62.5%

A pair of sandals is on sale for 20% off the original price. If the original price of the sandals is $21, what is the sale price?

• $16.50

• $16.80

• $17.20

• $17.60

• $4.20

Max wants to buy a new DVD player for $89.75. If sales tax is 8%, how much will he pay in total for the DVD player?

• $96.93

• $95.50

• $97.27

• $97.75

Mr. and Mrs. Kingsley went out for dinner on Valentine's Day. Their dinner bill came to $57.24. If they wish to leave a 15% tip, how much will they pay in total?

• $64.68

• $65.83

• $67.02

• $72.24

A $129 golf club is on sale for 30% off. If sales tax is 6.25%, what will be the final cost of the golf club with the discount and sales tax?

• $92.08

• $93.92

• $95.94

• $100.18