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Scott works on cars and charges $35 for each car plus $7 per hour. Scott billed Kylie $63.

Which equation would be used to solve for the unknown?

• 7x + 35 = 63

• 7x = 63

• 7x - 35 = 63

• 35x + 7 = 63

Penelope is going to the carnival to ride the rides. It costs $20 to get into the carnival and ride tickets are $0.50 each. Write an equation that represents this scenario if she spends $35 in all.

• .50x + 20 = 35
• .50x = 35
• .50 + 20x = 35 
• .50x - 20 = 35

Jim paid a gym membership fee of $50, plus $20 per month.  Jim has paid a total of $290 to the gym.  Which equation matches this situation?

• 50 + 20m = 290
• 20 + 50m = 290
• 50 + 20 = m
• 50m - 20 = 290

Twice a number plus 6 is -72

• 2 + 6x =- 72
• 2x + 6 = -72
• 2 + 6 = x
• 2x² + 6 = 72

Casey has $50 to spend at Best Buy. She wants to buy a DVD for $14 and some CDs that cost $12 each. How many CDs can she buy?

• 12 + 14x = 50

• 12x + 14 = 50

• 50 - 14 - 12 = x

• 50x + 12 = 14

What operation do these terms mean?
difference
decreased by
less than 

• addition
• subtraction
• multiplication
• division

Choose the correct equation for the following sentence:

Three more than the product of a number and four is 15.

5(x-3)=40

• 11
• 43/5
• 38
• 37/5

5(x-3)=40

• 11
• 43/5
• 38
• 37/5