Barry begins the year with $25 in his piggy bank. At the end of each month, Barry adds $3.
a. How much will Barry have after 5 months have passed?
b. Write a formula that could be used to calculate Barry’s total
savings (S) based on how many months (m) he has deposited
money in his bank.
c. Use your formula to determine how many months have passed
when Barry reaches $100 in his account.