Answer:
30
Step-by-step explanation:
A bundle of 3 adult tickets and 1 child ticket sells for $32.80, so there were ...
... $984/$32.80 = 30 . . . . bundles sold.
The number of child tickets sold was 30.
_____
Using an equation
Let c represent the number of child tickets sold. Then 3c is the number of adult tickets sold. The total revenue is ...
... 5.80c + 9.00·(3c) = 984.00
... 32.80c = 984.00 . . . . . . . . . . simplify
... c = 984.00/32.80 = 30 . . . . . divide by the coefficient of c
