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An airplane has both first-class and coach seats. The first-class tickets cost more than
the coach tickets. The airline wants a program that calculates and displays the total
amount of money the passengers paid for a specific flight. Complete an IPO chart
for this problem. Desk-check the algorithm using 9, 52, $125, and $90 as the number
of first-class tickets sold, the number of coach tickets sold, the price of a first-class
ticket, and the price of a coach ticket, respectively. Then desk-check it using your own set of data