Answer:
$4
Step-by-step explanation:
if its $2 per packet and he is buying 3 do 2x3 which is 6 then 10-6 which is $4
y axis is vertical x is horizontal
Answer:
The answer is A.
Step-by-step explanation:
Lets call f(x)=y, so y= 4*(3*x-5), we want to find 'x', using 'y' as a the variable.

Now lets change the name of 'y' to 'x', and 'x' to f^-1(x).
f-1(x) = (x+20)/12