Answer:
-64
Step-by-step explanation:
we should put -2 for j and -1 for k,
Answer:
The domain is 
Step-by-step explanation:
Given functions
and 
Subtract these two functions:

Plot these difference on the coordinate plane (see attached diagram). This function is defined for all vlues of x, so the domain is 
8 because the line is going up by 1 as seen from 4 and 6
A=pi radius^2
7 is the radius
Pi7^2=153.93