Sol Review Prealgebra

What is the sum of 6² and (8-7)⁴ ?

Which statement is true?

• 19,000,000 = 1.9 x 10⁷

• 19,000,000 < 1.9 x 10⁷

• 19,000,000 > 1.9 x 10⁷

• 19,000,000 = 1.9 x 10^-7

Label the diagram.

a

b

c

d

e

Rational

Irrational

Whole

Integer

Natural

Which statement is true?

• All integers are rational numbers.

• A number can be both rational and irrational.

• All rational numbers are integers.

• When written as a decimal, an irrational number repeats.

Which number is not an integer?

• -√4

• √0

• √9

• √17

Reorder the following in ascending order.

• 0.67

• 0.6%

• 0.66

• 2/3

Simplify the expression

-(6b - 8) -2(b + 7)

Mathematical Equivalence

ON

What is the correct formula for the question below?

Rhea had a score of a 70 on her first quiz and a score of a 77 on her second quiz. What is the percent increase from her first quiz score to her second quiz score?

Martha bought a blouse marked down from $32.50 to $25.35. What was the percent discount on the blouse?

• 15%

• 18%

• 20%

• 22%

The original price of a backpack is $35. Sallie bought the backpack at a discounted price for $28. What was the percent change in cost?

• 25%

• 20%

• -20%

• -25%