Question

Pls help i beg you!

A plumber charges a flat fee of $79 to visit a home and examine a clogged drain. The plumber charges an additional $24 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=79+24h

Answer the following questions.

(a)
What is the total cost for fixing a drain that takes 7 hours?
$?
(b)
If the plumber charged a total of $343, how many hours did he spend fixing the drain?
?hours

Answer 1

for "A" the answer is 247$

For "B" the answer 11 hours

Explanation: