Answer: 3
Step-by-step explanation:
At first you would subtract 39 from 60. Then you would do 21/5.5 and you would get 3.818… and due to the fact you can't go over 60 you would round to 3 and not 4
You would need to isolate the "X" variable because it is common in all 3 equations.
The answer is C. f(x) = 0.05
Sorry, I didn't quite understand the question here is a clear one, it was made by me personally in the geo-gebra application