Preparing for Algebra

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Joe’s department store sells pens for 60 cents each and pencils for 40 cents each. Diane purchased a total of 17 items (pens and pencils) for $8.20. How many pens did Diane purchase?

• 5

• 7

• 10

• 12

Simplify: (x⁶)(x⁵)

• 2x¹¹

• 2x³⁰

• x¹¹

• x³⁰

x⁴ − 16 = ?

• (x + 2)(x − 2)(x² + 4)

• (x + 2)²(x − 2)²

• (x + 2)³ (x − 2)¹

• (x − 2)⁴

What is the maximum value of this function: ƒ(x) = −16x² + 32x + 20

• 32

• 34

• 36

• 40

Solve for x:

3(x+1) = 5(x-2)+7

• -2

• 2

• 1/2

• 3

If 2x + 5 = 8x, then 12x = ?

• 5

• 10

• 15

• 20

Find the x-intercept of a line that has the following equation: 2y = 3x - 6

• -2

• -1

• 1

• 2

The points represented by the (x, y) coordinate pairs in the table above all lie on the line k.

What is the slope of line k?

• -2

• -3

• 2

• 5

Bill's new porch is rectangular, with an area of 50 square feet. If the length of the porch is two times the width, what is the perimeter of the porch

• 30 feet

• 40 feet

• 50 feet

• 60 feet