An aircraft has a maximum of 30 first class seats and 220 economy seats.
A first class seat costs $240 and an economy class seat costs $120.
A flight will be cancelled if the money taken for the seats is less than $28,800.
x=the number of first class seats
y=the number of economy class seats
Write three inequalities to represent the situation
(use < and >, ignore "or equal to" situations)