Question 560483
{{{F=P*(1+r)^t}}}
when
F = Future Value (Initial deposit plus 100)
I = Interest (100 in this case)
P = principle/initial deposit (unknown)
r = interest rate  (3%=.03)
t = number of years invested (3)

P+100=P*(1+.03)^3
cube 1.03
P+100=P*1.0927
subtract 1P from both sides
100=P*0.0927
divide both sides by 0.0927
1078.75=P