Review for Test: Expressions, Equations, & Inequalities (OL)

Christopher tries to convince his classmate Julie that 4x = 16 represents an expression. Julie disagrees and thinks that it represents an equation. Who is correct?

• Chris is correct because expressions contain variables

• Julie is correct because equations always contain an equal sign.

• Both are correct because expressions and equations are the same thing.

• Neither of them are correct.

During the month, a local animal shelter took in 10 stray dogs. After these 10 dogs joined the shelter, the shelter had 115 dogs. Which equation can be used to find d, the number of dogs in the shelter before the 10 strays joined.

The maximum speed limit on the interstate is 70 miles per hour. Which of the following number lines best represents the legal speed(s) to travel?

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Which number line represents the solution to 7x > 56 ?

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Melissa has a goal of saving $200 for a new jacket. She saves $20 per week. Which inequality can Melissa use to determine j, the number of weeks she should save to meet or exceed her goal?

Nancy made 6 times as many large posters as small posters. She made 60 large posters. Which equation can be used to find the number of small posters, p, that Nancy made?

• An open dot placed on 60 and the ray pointed to the right.

• A closed dot placed on 40 and the ray pointed to the left.

• An open dot placed on 60 and the ray pointed to the left.

• An open dot placed on 60 and the ray pointed to the right.

• James makes $10 per hour and earns a total of 30 dollars.

• James was gifted 10 points on his reward card and now has 30 total points

• James had a large box of candy and divided it among 10 people and each person received 30 pieces.

• James' team lost 10 points and now has a total of 30 points.

• {240, 241, 260, 280}

• {239, 220, 190, 150}

• {240, 190, 260, 280}

• {800, 850, 900, 999}