Haley has not been able to maintain the $1,200 minimum balance required to avoid fees on her checking account. She wants to switch to a different account with a fee of $0.25 per check and a $10.50 monthly maintenance fee. Haley wants to estimate the fees for her new account. To the right is a summary of the checks she has written from May to August. Month Number of Checks on Statement
May 15
June 23
July 18
August 16
a. What is the mean number of checks Haley wrote per month during the last 4 months?

b. Based on the math, estimate how much Haley expects to pay in per-check fees each month after she switches to the new account.

c. Estimate the total monthly fees Haley will pay each month for the new checking account.