swag: find the savings plan balance after 9 months with an APR of 11% and monthly payments of $300
Let's see
I presume you mean 11%per annum paid monthly. so that is 11/12 = 0.9166666% per month = 0.00916666666 (= i)
You put in $300 at the beginning of each month for 9 months. n=9
R=$300 This is your regular payment.
How much do you have at the end of 9 months.
Is this your question?
This is a future value of an ordinary annuity question.
S=R * [(1+i)
n-1}/i
300*((1.0091666666)^9-1)/0.009166666666
So there will be $2801.15 in the account to the neares cent.
+118725 
