The cost of renting tuxes for the Choral Society's formal is $24down, plus $83per tux. Express the costCas a function ofx, the number of tuxedos rented.

C(x) =24+83x

Use your function to answer the following questions.

(a) What is the cost of renting two tuxes?

$

(b) What is the cost of the second tux?

$

(c) What is the cost of the 4,098th tux?

$

(d) What is the variable cost?$