List the last name of each customer who has a reservation for a trip in Maine (ME). The trip price in the Reservation table is a per-person price. The total price for a trip includes the total of the...

List the last name of each customer who has a reservation for a trip in Maine (ME).

The trip price in the Reservation table is a per-person price. The total price for a trip includes the total of the trip

price and the other fees multiplied by the number of people taking the trip. Should total price be a field in the

Reservation table? Why or why not?