What you need to do is divide the 264 by the minutes (3) to get 88 bpm, so i would say c.
stick with 60
start trying 1 to 10
then
10, 20, 30, 40, 50, 60
1 , 2 , 4 , 5 , 10, 20, 40, 50
Answer:

Let d1 be the diameter of the moon and d2 and be the diameter of the earth.Let r1 be the radius of the moon and r2 be the radius of the earth.

<h2> hope it helps you</h2>
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