Help please with this question.

asked Feb 5, 2018 70.0k views

2 votes

by Ycon

8.6k points

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1 vote

Q = (c + d) / 2.....when d = 5 and Q = 21

21 = (c + 5) / 2 ...multiply both sides by 2
2 * 21 = c + 5
42 = c + 5
42 - 5 = c
37 = c <== answer A

Ach answered Feb 10, 2018

by Ach

7.9k points

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