Answer:
B. Both functions are increasing, but function f is increasing faster.
Given:
The demand function is,

The total revenue function is,

Answer:
I would say that they didnt because if you plug anythin in that equation it wont be a solution......i think thats what it meant
Step-by-step explanation:

The answer would be
x = 160/147
or
x = 1 and 13/147