7th Grade Algebra: Evaluating Expressions & Solving Equations

A store sells notebooks for $3 each. If you buy x notebooks, write an expression for the total cost. Evaluate the expression for x = 5.

• 20

• 25

• 10

• 15

Maria has 12 apples. She gives away some apples to her friends and now has 7 left. Write an equation to find out how many apples she gave away.

• 6

• 5

• 4

• 3

A rectangle has a length of 4 meters and a width of w meters. Write an expression for the perimeter of the rectangle. Evaluate the expression for w = 3.

• 10 meters

• 12 meters

• 16 meters

• 14 meters

Tom is 5 years older than his sister. If his sister is s years old, write an expression for Tom's age. Evaluate the expression for s = 12.

• 20

• 15

• 17

• 10

A car travels at a speed of 60 miles per hour. How far will it travel in t hours? Write an expression for the distance and evaluate it for t = 2.

• 90 miles

• 150 miles

• 60 miles

• 120 miles

The sum of a number n and 8 is 15. Write an equation to find n and solve it.

• 6

• 7

• 8

• 9

A recipe requires 2 cups of flour for each batch of cookies. If you want to make b batches, write an expression for the total cups of flour needed. Evaluate for b = 4.

• 10

• 8

• 4

• 6

A book costs $15. If you have y dollars, write an inequality to show how many books you can buy. Solve the inequality for y = 50.

• 5

• 4

• 3

• 2

The temperature in the morning was 20 degrees Celsius. If it increases by t degrees during the day, write an expression for the afternoon temperature. Evaluate for t = 10.

• 30 degrees Celsius

• 35 degrees Celsius

• 15 degrees Celsius

• 25 degrees Celsius

A gardener plants x flowers in each row. If there are 5 rows, write an expression for the total number of flowers. Evaluate the expression for x = 6.

• 25

• 35

• 40

• 30