Answer:
a. $77.5 for 5 tickets
b. You can by 8 tickets with $130
Step-by-step explanation:
a) $77.50
b) 8 tickets
a) C(x) = 17.5(x) - 10
C = 17.5(5) - 10
C = $77.50
b) C(x) = 17.5(x) - 10
130 = 17.5(x) - 10
130 + 10 = 17.5(x) -10 + 10
140 = 17.5(x)
140/17.5 = (x)
8 = x
