Algebra 1: Evaluating Expressions in Real-Life Scenarios

A store sells notebooks for $3 each and pens for $2 each. If you buy 4 notebooks and x pens, write an expression for the total cost. Evaluate the expression for x = 5.

• 25

• 20

• 18

• 22

Maria has twice as many marbles as John. If John has x marbles, write an equation to represent the number of marbles Maria has. If John has 10 marbles, how many does Maria have?

• 30

• 25

• 15

• 20

A rectangle has a length that is 3 times its width. If the width is w, write an expression for the perimeter of the rectangle. Evaluate the expression for w = 4.

• 24

• 32

• 28

• 36

A car rental company charges a flat fee of $50 plus $0.20 per mile driven. Write an expression for the total cost of renting the car for m miles. Evaluate the expression for m = 100.

• $30

• $100

• 70

• $150

The sum of three consecutive integers is 72. Write an equation to represent this situation and find the integers.

• 21, 22, 23

• 20, 21, 22

• 25, 26, 27

• 23, 24, 25

A gardener is planting flowers in rows. If each row has 5 flowers and there are r rows, write an expression for the total number of flowers. Evaluate the expression for r = 6.

• 40

• 35

• 25

• 30

A pizza place offers a deal where you can buy 2 large pizzas and x small pizzas for a total of $30. If a large pizza costs $12, write an equation to find the cost of a small pizza.

• 12/x

• 6x

• 30/x

• 6/x

A school is organizing a field trip. The cost per student is $15, and there are s students attending. Write an expression for the total cost. Evaluate the expression for s = 20.

• 250

• 300

• 150

• 400

A recipe requires 2 cups of flour for every 3 cups of sugar. If you have f cups of flour, write an expression for the amount of sugar needed. Evaluate the expression for f = 6.

• 12 cups of sugar

• 3 cups of sugar

• 6 cups of sugar

• 9 cups of sugar

A book costs $12, and there is a discount of d dollars. Write an equation to find the sale price of the book. If the discount is $3, what is the sale price?

• $15

• $9

• $6

• $10