7th Grade Algebra: Solve Equations & Evaluate Expressions

A store sells pencils for $0.50 each. If you buy x pencils, how much do you spend? Write an expression for the total cost and evaluate it for 10 pencils.

• $7.50

• $5.00

• $10.00

• $2.00

Maria has 3 times as many marbles as John. If John has y marbles, write an expression for the number of marbles Maria has and solve for y = 5.

• 12

• 15

• 20

• 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

• 120 miles

• 60 miles

• 150 miles

The sum of a number n and 12 is equal to 30. Write an equation to represent this situation and solve for n.

• 15

• 25

• 20

• 18

A rectangle has a length that is 4 more than its width. If the width is w, write an expression for the length and find the area when w = 6.

• 60

• 48

• 24

• 36

If a book costs $15 and you have a coupon for $5 off, write an expression for the final price and evaluate it.

• $5

• $15

• $20

• $10

A gardener plants x flowers in each row. If there are 5 rows, how many flowers are planted in total? Write an expression and evaluate it for x = 8.

• 30

• 25

• 40

• 50

The total cost of 3 notebooks and 2 pens is $10. If each notebook costs $2, write an equation to find the cost of each pen and solve it.

• $3

• 2

• $1

• $5

A recipe requires 2 cups of flour for every 3 cups of sugar. If you have s cups of sugar, write an expression for the amount of flour needed and evaluate it for s = 9.

• 4 cups

• 8 cups

• 6 cups

• 10 cups

A train leaves the station at 3 PM and travels at a speed of 45 miles per hour. Write an expression for the distance traveled after h hours and evaluate it for h = 4.

• 180 miles

• 90 miles

• 225 miles

• 150 miles