Find trusted answers to your questions with the help of IDNLearn.com's knowledgeable community. Discover the information you need from our experienced professionals who provide accurate and reliable answers to all your questions.
Answer:
15h + 50
Step-by-step explanation:
Lets use "h" for hours.
50 is left alone and added at the end since its just one fee. Now since 15 is per hour and we don't know how long the plumber will be there we need a variable so 15h.