P x (1+r/n)^nt = F
where P is principal
r is the rate
n is the number of times per year
t = years
P x (1+r/n)^nt = F
700*(1+.025)^2t) =930
divide by 700
(1.025)^2t = 93/70
2t log (1.025) = log (93/70)
2t = log (93/70) divided by log (1.025)
2t =11.5056
t=5.753 years
