Step-by-step explanation:
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Answer:
144
Step-by-step explanation:
The surface area of a sphere that has a volume of 288π cu in is 144 pi.
C) 88
Explanation: trust me
Answer:
21:50
Step-by-step explanation:
We need to find the ratio of 420 m to 1 km.
We know that,
1 km = 1000 m
So,
The ratio becomes,

So, the required ratio is 21:50.