Question

A theater company charges $5.50 per ticket for people of all age groups. If c represents the total number of children who bought tickets and a represents the total number of adults who bought tickets, which expression best represents the total money earned by the company from the sale of tickets?

5.5(c + a) 
5.5c + a 
c + 5.5a  
11(c + a)

Answer 1

5.5 (c + a) would be the correct answer

Answer 2

The theater charges $5.5 per ticket per person of any age group.
Your expression would not have $5.5c or $5.5a as they have a price for only one variable.
Your expression would be 5.5(a+c).
Your first option is the correct one.