What is Sonya's age in terms of Dave's age d, given Sonya is three times Dave's age?

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Multiple Choice

What is Sonya's age in terms of Dave's age d, given Sonya is three times Dave's age?

Explanation:
The main idea is that when one person’s age is a multiple of another’s, you multiply the smaller age by that multiple. Sonya is three times as old as Dave, and Dave’s age is d, so Sonya’s age is 3 × d, which is 3d. For a quick check, if Dave were 6, Sonya would be 18, which matches three times as old. The other expressions don’t reflect the “three times” relationship: d would mean the same age, 2d would be twice as old, and 4d would be four times as old.

The main idea is that when one person’s age is a multiple of another’s, you multiply the smaller age by that multiple. Sonya is three times as old as Dave, and Dave’s age is d, so Sonya’s age is 3 × d, which is 3d. For a quick check, if Dave were 6, Sonya would be 18, which matches three times as old. The other expressions don’t reflect the “three times” relationship: d would mean the same age, 2d would be twice as old, and 4d would be four times as old.

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