State Exam Review 4

The population of a city is expected to increase by 75% next year. If p represents the current population, which expression represents the expected population next year?

• 1.75p

• 1.075p

• p + 0.075

• 1 + 0.075

Sammy paid a plumber x dollars per hour for a 5 hour job plus $70 for parts. The total charge was $320. Which equation can be used to determine how much the plumber charged per hour?

• 5x = 320 – 70

• 5x = 320 + 70

• (70 + 5)x = 320

• (7- - 5)x = 320

The School PTA had a banquet as a fundraiser for new playground equipment. They sold 250 tickets for a total of $5,625. Their expenses for the banquet were $6,182.50. What were the results of the PTA’s fundraiser?

• Lost 2.23 per ticket

• Made 1.05 per ticket

• Lost a total of $307.50

• Made a total of 557.50

The expression 1.08 (0.60p) represents the total amount Ginny paid for a jacket originally priced at p dollars. Which changes to the original price could have resulted in this expression?

• Original price was reduced by 40%, then increased by 8%.

• Original price was reduced by 40%, then increased by 108%

• Original price was increased by 60%, then increased by 8%.

• Original price was increased by 60%, then increased by 108%

A crew of highway workers paved 2/15 mile in 20 minutes. If they work at the same rate, what portion of the highway will they pave in one hour?

• 2/5

• 1/150

• 2/45

• 5/2

Which expression is equivalent to 4.8 + 2.2w – 1.4w + 2.4?

• 0.8 (9 + w)

• 0.4(6 + 2w)

• 1.6(3 + 2w)

• 3.6(2 + w)

Add the linear expressions: (-4x + 5) + (15x - 3)

• 11x + 2

• 19x - 2

• 19x + 8

• -11x - 2

Which expression is equivalent to 2(3n-4) – 2(n-2)?

• 4n – 4

• 4n + 4

• 8n - 4

• 8n + 4

Larry bought a used car for x dollars. One year later the value of the car was 0.88x. Which expression is another way to describe the change in the value of the car?

• 12% decrease

• 0.12% decrease

• 0.88% decrease

• 88% decrease

Connie bought a computer that was 20% off the regular price of $1,080. If an 8% sales tax was added to the cost of the computer, what was the total price Connie paid for the computer?

• $933.12

• $320.40

• $864.00

• $1,382.40