Answer:

Step-by-step explanation:
Assuming 
What we have to do is replace f(x) with y, swap the locations of x and y, and then solve for y.

Answer:
The answers are A, B, E
Step-by-step explanation:
C and D are less but not greater than-1.6
A.
For Deshaun: $75 - $10x
For Ann: $90 - $15x
B.
$75 - $10x = $90 - $15x
<em>I believe this is right, check over to make sure. I may be wrong, and sorry if I am.</em>