Answer:
c. add 4 on each side and multiply by 8
Step-by-step explanation:
Yes, I know these problems!
Answer:
7 hours
Step-by-step explanation:
First you subtract 20 from 69, as the starting fee. That leaves you with 49. 49/7 = 7 hours
Https://www.symbolab.com/solver/step-by-step/%5Ccot%5Cfrac%7B-5%5Cpi%7D%7B6%7D
I'm unsure how to properly express how to do this to you but here is a list of steps on how to solve it. Good luck.