A plumber charges a flat fee of $76 to visit a home and examine a clogged drain. The plumber charges an additional $29 per hour spent fixing the drain. The
total cost, C (in dollars), for fixing a drain that takes h hours is given by the following.

C=29h+76

Answer the following questions.
(a) If the plumber charged a total of $395, how many hours did she spend
fixing the drain?

(b) What is the total cost for fixing a drain that takes 5 hours?