Answer:
117.00
Step-by-step explanation:
I = prt where i is the interest , p is the principal r is the rate and t is the time in years
2 years 6 months is 2.5 years
I = 1200 * .039* 2.5
I =117
I
23/30
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Your r^2 times pi is the area of the base, h is the height, and 1/3 is 1/3 of a cylinder.