A plumber charges a flat fee of $ 79 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+79
Answer the following questions.
(a) If the plumber charged a total of $398, how many hours did he spend fixing
the drain?

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

Select the correct answer. given: ∆abc with prove: statement reason 1. given 2. ∠cab ≅ ∠edb ∠acb ≅ ∠deb if two parallel lines are cut by a transversal, the corresponding angles are congruent. 3. ∆abc ~ ∆dbe aa criterion for similarity 4. corresponding sides of similar triangles are proportional. 5. ab = ad + db cb = ce + eb segment addition 6. substitution property of equality 7. division 8. subtraction property of equality what is the missing statement in the proof? scroll down to see the entire proof.