Answer:The answer is 58
Step-by-step explanation:
Kepler's 3rd Law is t^2 = r^3
Let's say "r" is 2, then
t^2 = 8
t =
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2.8284271247
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Basically, t = r^1.5
If you want to know more about Kepler's 3rd Law click here:
http://www.1728.org/kepler3a.htm