Bradford T. answered 04/28/23
Tutor
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Retired Engineer / Upper level math instructor
Amount = P(1+r/n)nt
Interest Earned = Amount-Principal = P(1+r/n)nt-P
Interest = P((1+r/n)nt-1)
If P=4390, r = 0.1138, n=12 and t = 3, can you do the arithmetic?