Solution:
a)
f(t)=10000×(1+0.024212)12t
b)
f(20)=16217.61042
c)
Annual growth factor = (1+0.024212)12=1.024470231
Annual percentage change = 1.024470231−1=0.024470231=2.447023091%
d)
We want to find out the t such that f(t)=20000, solving using logarithms, get t=28.67131691
e)
That would become 10000×(1+0.0242365)365×20=16225.25613
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