Answer
a. C(x) = 2500x + 30000
b. R(x) = 3125x
c. 48 sold-out performances
Work Step by Step
a. Each performance (x) costs 2500 dollars. There is a 30000 dollar base charge
C(x) = 2500x + 30000
b. Each performance (x) generates $3125
R(x) = 3125x
c. Set C(x) = R(x)
2500x + 30000 = 3125x
30000 = 625x
x = 48