Answer:

Step-by-step explanation:
*photo attached*
F(x)=-4x-1 if you sub 3 into it you get 3(-4)-1 which is -13 and 2x+4=10
If x=6 and y=3 is 9_______________________________________
For the first one, it would be 5/3 and 19/3
the second one would be 40
Answer:
Undefined.
Step-by-step explanation:
Because there is a 0 in the denominator.