7th grade Solving Problems with Proportions

Helen bought a dress for $40 and a ring for $85. If the sales tax rate is 6%.

What will be the sales tax Helen spends on the dress and ring be in dollars and cents?

• $2.40

• $7.50

• $5.10

Mark purchased a backpack for $15.48. If the sales tax rate is 5%.

What will be the sales tax Mark spends on the backpack in dollars and cents?

• $0.77

• $77.40

• $6.30

In August Lana got a puppy that weighed 13 kilograms. By October, the puppy weighed 17.16 kilograms. By what percent did the puppy’s weight increase?

• 32

• 24.24

• 132

• 73.86

A store sold $1,400 in gift cards last year. The goal for this year was to sell $1,596 in gift cards. This is an increase of what percent?

• 114

• 14

• 87.7

The ratio of goldfish to gallons of water is 7 to 2.

How many goldfish can you get if you have 16 gallons of water?

• 4.57

• 0.875

• 56

You are taking a test in science. There are 20 questions and 45 minutes.

How much time do you have for 10 questions?

• 22.5

• 90

• 4.44

Oranges are on sale for 4 for $3.00.

How much would 24 oranges cost?

• 32

• 0.5

• 18

A 12-ounce bottle of shampoo lasts Enrique 16

weeks. How long would you expect an 18-ounce

bottle of the same brand to last him?

• 24

• 10.66

• 13.5

If 1 teaspoon is 5 milliliters, how many teaspoons are equal to 32 millimeters?

• 6.4

• 160

• 0.15

The mass of a textbook is about 1.25 kilograms. There is 1 kilogram in 2.2 pounds. About how many pounds is this?

• 2.75

• 0.56

• 1.76