If f(x) = x + 4 and g(x) = x2 -1, what is (gof)(x)? o (gºf)(x)=x2-1
o (gºf)(x) = x+8x+16
. (gºf)(x) = x² +8x+15
O (gºf)(x) = x+3

341

step-by-step explanation:

all you have to do is 9x31 (which equals 279) and then 20x31 (which equals 620). then you have to subtract. 620-279=341.

hiking down a winding trail.

step-by-step explanation:

i think the amount would be $140.62