Given:
The number is -6.
To find:
The inverse with respect to addition of the given number.
Solution:
We need to find the additive inverse of -6, to get the inverse with respect to addition of -6.
We know that, the sum of a number and its additive inverse is 0.
Let the additive inverse of -6 be x. Then,

Adding 6 on both sides, we get


Therefore, the inverse with respect to addition of -6 is 6.
Answer: fg
and
Domain: All real number. All real number or 
Explanation:
fg means product of two given function f(x) and g(x)
where,
and 
Now, we have to find fg
So, fg=
Substitute f(x) and f(x)

Using distributive property simplify above expression and we get,

We can see it is cubic polynomial. So, domain of cubic polynomial is all real number.
Domain: All real number or 
Answer:
63 feet ^2
Step-by-step explanation:
Well assuming your presented with length and width.
9*7=63
Replace f(x) in the equation with what it equals:

Distribute 4 to each term in parentheses:



The answer is
C.
Answer:
68
Step-by-step explanation:
(x + 4)/ 6^2 = 2
x+4= 2(36)
x= 72-4
x=68