Josiah and his friends are going to the movies. each ticket costs $10, and popcorn is $5 a bag. there is a $3 service fee for the entire purchase. he has $75. if he buys 4 tickets, how many bags of popcorn can he buy? if x=number of tickets and y=number of popcorn which of the following inequalities would you use to answer the problem?
a x+y=75
b 10x+5y+3≤75
c 10x+5y≤75
d 10x+5y+3≥75