Function would be f(x) = 5x+85
here, x= 15
5(15)+85 = 75+85 = $160
65+50x = 55x + 20
-50x -50
65=5x+20
- 20 - 20
55=5x
55/5= 5x/5
11=x
The solution represents that it 11 months will make both gyms the exact same price.
Answer:
6
Step-by-step explanation:
Bruno(B)= 4.5× Charles(C)