Recursive formula money

[akprocks]

I'd be much obliged if someone helped me.

part I: $100,000 is invested in a account that pays 6.75% annual interest, compounded monthly. If the money is untouched for 10 years, what is the amount?
part II: What happens if 100$ is added every month just after the interest is compounded, how much money will there be in 10 years?

I believe the recursive formula should be u1=100,000 12 months (un-1* .0675 percent interest) if this helps at all.

 

[Denis]

WHERE do these 2 problems come from? Your math class?
Were you not given the formulas for these?

If not, did you at least try by using Google; like a search on "future value of money"?