Answer:
f^-1(x) = ( x + 6 )/4
Step-by-step explanation:
f(x) is the same as...y = 4x + 6....and then try to make x the subject of formula
y + 6 = 4x
x = (y + 6)/4....then when writing f^-1(x)...replace y with x
f^-1(x) = ( x + 6 )/4
We have the equation:

So then we need to distribute -7p to the parentheses:

Then we need to set the equation equal to 0, so we must subtract 21 on both sides:

Then we need to factor this. So we end up with:

This is as much as this can be factored, so <u>we cannot go any further</u>.
Answer:
7/4
Step-by-step explanation:
the question already mentioned that he ate 7/4 pound of the pancake