Question 1065747
A=75{1+(.018/12))^48-1}/(.018/12)
=$3729.87
The basic set up is the amount put in multiplied by
1+ interest rate/number of compundings per year) all raised to the number of compoundings per year*years.
Then subtract 1 and multiply by the amount put in each period (here $75).
Divide by interest rate/compoundings, the same number that was added to 1 at the beginning.