Final answer:
Skippy's total bank fee for last month was calculated as $24.45, which includes a flat fee of $13.95 and an additional fee of $10.50 for the 7 transactions over the included 15 transactions limit.
Step-by-step explanation:
Skipppy's total bank fee for the month can be calculated by considering both the flat fee for the first 15 transactions and the additional fee for each transaction beyond that limit. Skippy made a total of 22 transactions, so we can calculate the total cost using two components: the flat fee and the extra transaction fees.
Calculation of Total Bank Fee
Skippy's bank charges a flat fee of $13.95 for up to 15 transactions. Since Skippy made 22 transactions, which is 7 more than the 15 included in the flat fee, we must calculate the additional cost for these extra transactions. The bank charges $1.50 for each transaction over 15 transactions, so we multiply 7 (extra transactions) by $1.50 (cost per extra transaction).
Extra cost for transactions = 7 transactions × $1.50/transaction = $10.50
Now, we add the flat fee of $13.95 to the extra transaction fee of $10.50 to find the total bank fee for the month.
Total bank fee = Flat fee + Extra transaction fee
Total bank fee = $13.95 + $10.50 = $24.45
Therefore, Skippy's total bank fee for last month was $24.45.