OAR OAR Math Skills 4

Question 1

A circular pizza has a diameter of 12 inches. What is its area? (Use π ≈ 3.14)

Accepted Answer

113.04 sq in

Answer

Radius = 6; area = π × 6² = 3.14 × 36 = 113.04 sq in.

Question 2

Solve for y: 4y + 12 = 36

Accepted Answer

6

Answer

4y = 36 − 12 = 24; y = 24 / 4 = 6.

Question 3

A worker earns $15 per hour and gets a 10% raise. What is the new hourly wage?

Accepted Answer

$16.50

Answer

Raise = 10% of $15 = $1.50; new wage = $15 + $1.50 = $16.50.

Question 4

What is the greatest common factor (GCF) of 48 and 36?

Accepted Answer

12

Answer

Factors of 48: 1,2,3,4,6,8,12,16,24,48; factors of 36 include 12; GCF = 12.

Question 5

A sequence follows the rule: multiply by 3 each time. If the first term is 2, what is the 5th term?

Accepted Answer

162

Answer

2 → 6 → 18 → 54 → 162; the 5th term is 162.

OAR Test Practice Test