West B Test Mathematics — Questions and Answers

Question 1: A student earns $12.50 per hour and works 34 hours in a week. Which expression correctly calculates total earnings?

12.50 + 34
12.50 × 34 (Correct answer)
34 ÷ 12.50
12.50 − 34

Correct answer: 12.50 × 34

Total earnings = rate × hours = 12.50 × 34 = $425.00.

Question 2: What is the value of 3² + 4²?

14
25 (Correct answer)
49
7

Correct answer: 25

3² = 9 and 4² = 16, so 9 + 16 = 25.

Question 3: A rectangle has a length of 15 cm and a width of 8 cm. What is its perimeter?

23 cm
120 cm
46 cm (Correct answer)
30 cm

Correct answer: 46 cm

Perimeter = 2(l + w) = 2(15 + 8) = 2(23) = 46 cm.

Question 4: Which of the following is equivalent to 0.75?

3/5
7/10
3/4 (Correct answer)
1/4

Correct answer: 3/4

0.75 = 75/100 = 3/4 when reduced to lowest terms.

Question 5: If 5x − 3 = 22, what is x?

3.8
5 (Correct answer)
4
25

Correct answer: 5

5x = 22 + 3 = 25, so x = 25 ÷ 5 = 5.

Question 6: A triangle has angles measuring 55° and 80°. What is the measure of the third angle?

45° (Correct answer)
135°
25°
75°

Correct answer: 45°

The three angles of a triangle sum to 180°, so the third angle = 180 − 55 − 80 = 45°.

Question 7: Which number is NOT a prime number?

17
23
51 (Correct answer)
29

Correct answer: 51

51 = 3 × 17, so it has factors other than 1 and itself and is not prime.

Question 8: A recipe requires 2¼ cups of flour. If you want to make 1.5 times the recipe, how many cups do you need?

3 cups
3¾ cups
3⅜ cups (Correct answer)
4 cups

Correct answer: 3⅜ cups

2¼ = 2.25; 2.25 × 1.5 = 3.375 = 3⅜ cups.

Question 9: Which of the following represents 4.2 × 10³ in standard notation?

0.0042
420
4,200 (Correct answer)
42,000

Correct answer: 4,200

10³ = 1,000, so 4.2 × 1,000 = 4,200.

Question 10: The mean of five test scores is 78. Four of the scores are 70, 82, 75, and 85. What is the fifth score?

76
80
78 (Correct answer)
72

Correct answer: 78

Sum = 78 × 5 = 390; fifth score = 390 − (70+82+75+85) = 390 − 312 = 78.

Question 11: A cylinder has a radius of 3 cm and a height of 10 cm. What is its volume? (Use π ≈ 3.14)

94.2 cm³
282.6 cm³ (Correct answer)
188.4 cm³
942 cm³

Correct answer: 282.6 cm³

V = πr²h = 3.14 × 9 × 10 = 282.6 cm³.

Question 12: Which of the following is equivalent to (−2)³?

6
−8 (Correct answer)
8
−6

Correct answer: −8

(−2)³ = (−2) × (−2) × (−2) = 4 × (−2) = −8.

Question 13: A line passes through the points (0, 3) and (2, 7). What is its slope?

2 (Correct answer)
4
3
1

Correct answer: 2

Slope = (7−3)/(2−0) = 4/2 = 2.

Question 14: Which measure of central tendency is most affected by an outlier in a data set?

Mode
Median
Mean (Correct answer)
Range

Correct answer: Mean

The mean is calculated using all values, so a very high or low outlier significantly shifts it.

West B Test Mathematics

A student earns $12.50 per hour and works 34 hours in a week.
Which expression correctly calculates total earnings?

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Sources & references

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pesb.wa.gov — Eligibility · verified Oct 2026
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