Unit 4 E.O.U. Review (Acc 7)

Select all expressions that are equivalent to -4(x+2) - 2x + 4.

• -6x - 4

• -4x + 2 - 2x + 4

• -10x

• -4x - 8 - 2x + 4

• -4x - 2x - 8 + 4

Factor to write an equivalent expression for -9x + 15y.

• -3(3x - 5y)

• -3(3x + 5y)

• -9(x - y)

• -3x + 15y

• Incorrect distribution

• Incorrect addition

• Incorrect subtraction

• Incorrect multiplication

Solve the equation (1/4)x - 3 = 9.

• x = 12

• x = 24

• x = 48

• x = 36

What is the solution to the equation (1/4)x = 12?

• x = 3

• x = 48

• x = 24

• x = 36

At the end of 4 weeks, who has more money in their account?

• Han

• Lin

• Both have the same amount

• Neither has money left

After how many weeks will Han and Lin have the same amount of money in their lunch accounts?

• 5 weeks

• 10 weeks

• 15 weeks

• 20 weeks

A community center rents their hall for special events. They charge a fixed fee of $200 plus an hourly fee of $22.50. Lin has $300 to spend on renting the hall for a fundraiser.

Using only the money she has, can Lin pay for a 6-hour event? Explain or show your reasoning.

• Yes, because the total cost is $300.

• No, because the total cost is $335.

• Yes, because the total cost is $250.

• No, because the total cost is $200.

A community center rents their hall for special events. They charge a fixed fee of $200 plus an hourly fee of $22.50. Lin has $300 to spend on renting the hall for a fundraiser.

Using only the money she has, can Lin pay for a 3-hour event? Explain or show your reasoning.

• Yes, because the total cost is $267.50.

• No, because the total cost is $300.

• Yes, because the total cost is $200

• No, because the total cost is $200.

A community center rents their hall for special events. They charge a fixed fee of $200 plus an hourly fee of $22.50. Lin has $300 to spend on renting the hall for a fundraiser.

If h represents the number of hours, what does 22.50h + 200 represent?

• The total cost of renting the hall for h hours.

• The hourly fee for renting the hall.

• The fixed fee for renting the hall.

• The number of hours Lin can rent the hall.