college algebra
posted by shiedah .
A grandmother is looking for a plan to finance her new grandchild’s college education. She has $25,000 to invest. Search the internet and locate a longrange investment plan, CD, Savings Bond, etc, for the grandmother. The plan is to earn compound interest.
Calculate the future value of the investment. You must use the advertised interest rate, the number of compounding periods per year, and the time the funds will be invested. If you are not given the number of compounding periods a year, make it up.
p=25,000(1+0.0177/1)1*8
p=25000
rate=0.0177
n=1
time=8 years
i need step by step help

I don't see what the problem is
Just evaluate it
P = 25000(1.0177)^8
= 25000(1.150689622)
= 28767.24 
model the future value of grandmas investment as an exponential function,with time as the independent varible:f(t)=p(1+r/n)nt

A grandmother is looking for a plan to finance her new grandchild’s college education. She has $50,000 to invest. Search the internet and locate a longrange investment plan, CD, Savings Bond, etc, for the grandmother. The plan is to earn compound interest