
First, Substitute x + y = 160 into equation
x = 160 - y

Substitute that into

The answer is 110.
Hope this helps. - M
In what? More explanation please
Answer:
C. -1 1/4
Step-by-step explanation:
First, we substitute -5 for x.

Then, we evaluate.

Answer:

as 
and
as 
Step-by-step explanation:
We can see it is cubic polynomial with positive leading coefficient.
Degree of polynomial is 3 and leading coefficient +3
End behavior depends on two parameter degree and leading coefficient.
It would be negative infinity as x approaches to negative infinity and positive infinity as x approaches to positive infinity.
We can see in graph also. Please take a look attached graph.