If 7 items cost 21 dollars, what is the cost per item?

**Choice A is the best answer.** Cost per item = 21 / 7 = 3 dollars

**Choice A is the best answer.** Cost per item = 21 / 7 = 3 dollars

Set 3: Ratios Rates Proportions (Beginner)

Explanation

Answer: A

PROBLEM

If 7 items cost $21, what is the cost per item?

✓ Correct

Choice A is the best answer. Cost per item = 21 / 7 = $3

Why others are wrong:

B: 6 is incorrect because it does not satisfy the equation.

C: 6 is incorrect because it does not satisfy the equation.

D: 1 is incorrect because it does not satisfy the equation.

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