Math Models

If the volume of a cube is 27in³, what is the length of one side of the cube?

• 3in
• 9in
• 2.7in
• 3cm

If the area of a square is 81cm², what is the side length?

• 9cm
• 81cm
• 3cm
• 9cm²

Given the following radical, decide if it is rational or irrational:
√121

• Rational
• Irrational

A non-terminating decimal is which type of number?

• Rational 
• Irrational

Zero is a ___________.

• whole number
• natural number
• whole number, integer, and rational
• irrational

Is 8.27 rational or irrational?

• Rational
• Irrational
• Both
• None of the above

If p = -6, what does -10(p + 4) equal?

• 2

• 20

• -2

• -20

b² + 4
when b = 3

• 10
• 12
• 13
• 11

Evaluate when a = 15:
2(a - 5) + 2

• 22
• 27
• 14
• 7

Evaluate 2r + 1      if   r = 3

• 6
• 5
• 7
• 8