N-MATH Reviewer

Determine whether each pair of ratios forms a proportion

• Proportion

• Not a Proportion

Find the product of 2½ × 1¼

• 2⅘

• 3½

• 4⅝

• 4⅜

60% decrease to 42

• 10

• 18.2

• 16.8

• 20.5

Simplify (3x³y)(2x⁸y⁵)

• 5x¹¹y⁶

• 6x¹¹y⁶

• 6x²⁴y⁵

• 5x¹¹y⁶

Order from greatest to least: -12, 15, -1, 3,

• 15, 3, -1, -12

• 15, 3, -12, -1

• -1, -12, 3, 15

• -12, -1, 3, 15

Write 42,000 in scientific notation.

• 42.000 x 10³

• 4.2 x 10 ^-4

• 4.2 x 10⁴

• 0.42 x 10⁵

Find the difference of

(-33) - 65.

• 332

• -98

• 98

• -32

Convert this decimal to a percentage 0.175

• 17.5%

• 1750%

• 175%

• 1.75%

Find the marked price or original price.

D= 250

RD= 3.2 %

• 7 812. 50

• 7 218. 50

• 7 811.10

500 ÷ (−25) =

(a)