Expressions Equations and Inequalities Review

Katy and Ross tutor math students. The table above shows the amount of money they collected each week for four weeks. If they tutored a total of 136 students, which equation represents the relationship between the money collected (m) and the number of students tutored (x)?

• m = 15x

• x = 15m

• m = 510x

• x = 510m

Which scenario best matches the inequality x > 3?

• Joanna needs to be in bed by 10 p.m. It’s now just past 7 p.m. How many more hours, x, can Joanna stay up?

• Lana stays after school from 3 p.m. until 6 p.m. How many hours, x, does she spend at school during that time frame?

• Ricardo has a math exam. He started studying at 4 p.m. and will not stop until after 7 p.m. How much time, x, will he spend studying?

• Jared’s baseball game starts at 12 p.m. The game needs to end before 3 p.m. because another team must use the field. How much time, x, can Jared’s team play?

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What inequality does this number line show?

• n > 5

• n < 5

• 5 ≤ n

• 5 ≥ n

The phrase: “the product of 4 and x” represents which algebraic expression?

• 4 ÷ x

• 4x

• 4 + x

• 4 - x

Evaluate the expression 6 ÷ 2 + h, using the order of operations, when h = 1

• 2

• 3

• 4

• 5

Write an expression for the table:

• 14 ÷ n

• 7n

• 5 + n

• 35 - n

Which expression is equivalent to 2(t + 4)?

• t + 8

• 2t + 4

• 8 + 2t

• t + 4

Solve for b.

b + 7 > 8

• b > 15

• b > 1

• b < 15

• b < 1

A movie club sells DVDs for $16 each. The club charges a shipping and handling charge of $4 for an entire order. Write an expression to show the total cost if you order n DVDs.