Answer: 2/5
Step-by-step explanation:
It’s A. 45.
hope this helps
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➷ The formula for volume of a cylinder is:

The radius is half the diameter
Radius = 8/2 = 4
Substitute the values in:

Surface area = 
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The answer is just C your welcome
3 equivalent ratios or 5/2
10 /4
20/8
30/12