Math Review with Expressions and Equations

• 9t+12.50

• 324t+450

• 48t+69

• 6t+6

Lewis is saving his money for new clothes. Lewis will mow his neighbor's lawns and earn an allowance from his parents. He will earn $25 for his allowance and an additional $12 for each lawn that he mows. If he wants to save at least $85, how many lawns will Lewis need to mow?

Which graph below shows the solution?

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4 more than twice a number

• 2x + 4

• 2 + x + 4

• 2x - 4

• 2/x + 4

Choose all the expressions equivalent to 3(2x+1)

• 6x+3

• 3(1+2x)

• 3(2x)+1

• 2x+1+2x+1+2x+1

Marco has $35 and earns $10 for each car he washes. Marco wants to buy a concert ticket that costs $75. What is the minimum number of cars Marco needs to wash to be able to buy the concert ticket?

• 6 cars

• 5 cars

• 4 cars

• 3 cars

Ceclia goes into a candy store with $4.00. She buys 9 jolly ranchers for $0.15 each and some chocolates. Each chocolate costs $0.25. What is the maximum number of chocolates Ceclia can buy?

• 16 chocolates

• 15 chocolates

• 11 chocolates

• 10 chocolates

Which is the solution of the inequality 2x-4≥-6?

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Jenna has $235 in savings. She is able to save $25 per week. If she wants at least $400 in her savings. If w is the number of weeks, express this situation in an inequality.

• 235w+25<400

• 235w+25>400

• 235+25w≥400

• 235+25w≤400

An inverse operation is

• reversing the sign in an inequality

• using the opposite operation to solve equations

•  A number’s distance from zero