Please help me with this !
An airplane has 173 seats. Seats on a flight to Albuquerque cost $675 in first class,
$590 in business class, and $480 in coach. The number of seats in coach is 9 more than 3 times
the total number of seats in first class and business class combined. If the airline takes in
$88,910 from a sold-out flight, how many seats does each section hold?