THEA THEA Math 5 — Questions and Answers
Question 1: A store marks up items by 40% of the wholesale cost. If the wholesale cost is $85, what is the selling price?
- $115
- $119 (Correct answer)
- $125
- $127
Correct answer: $119
Markup = 40% × $85 = $34, so selling price = $85 + $34 = $119.
Question 2: Which of the following is the graph of y = –x + 3?
- A line with positive slope crossing the y-axis at –3
- A line with negative slope crossing the y-axis at 3 (Correct answer)
- A line with positive slope crossing the y-axis at 3
- A parabola opening downward with vertex at (0, 3)
Correct answer: A line with negative slope crossing the y-axis at 3
y = –x + 3 has slope –1 (negative) and y-intercept 3.
Question 3: Evaluate: 5! (5 factorial)
- 25
- 60
- 100
- 120 (Correct answer)
Correct answer: 120
5! = 5 × 4 × 3 × 2 × 1 = 120.
Question 4: The volume of a rectangular prism is 360 cm³. If the length is 10 cm and the width is 6 cm, what is the height?
- 4 cm
- 5 cm
- 6 cm (Correct answer)
- 8 cm
Correct answer: 6 cm
V = l × w × h → 360 = 10 × 6 × h → h = 360/60 = 6 cm.
Question 5: What is the value of |–15| + |–8| – |6|?
- 1
- 17 (Correct answer)
- 29
- –29
Correct answer: 17
|–15| = 15, |–8| = 8, |6| = 6; so 15 + 8 – 6 = 17.
Question 6: The length of a side of a square is tripled. By what factor does its area increase?
- 3
- 6
- 9 (Correct answer)
- 12
Correct answer: 9
If side = s, original area = s²; new area = (3s)² = 9s², so area increases by a factor of 9.
Question 7: Solve for y: 3y/4 = 9
- y = 3
- y = 9
- y = 12 (Correct answer)
- y = 18
Correct answer: y = 12
Multiply both sides by 4/3: y = 9 × (4/3) = 12.
THEA THEA Math 5
A store marks up items by 40% of the wholesale cost.
If the wholesale cost is $85, what is the selling price?