Answer:
b
Step-by-step explanation:
Answer:

Step-by-step explanation:
In this problem, we need to write the factor form of expression
.
It can be done as follows :

Taking common form the terms as follows :

It can be also written as :

Hence, the factored form of
is 
Answer:
With F represent the variable of interest:



Step-by-step explanation:
For this case we have a normal limits for the temperature Range. The minimum is 660 F and the maximum 790 F.
We can find the midpoint of this interval like this:

And the difference between the midpoint and the limits are:


So then we can create the following inequality:
With F represent the variable of interest.:



Answer is -8
(-1)+(-7) turns into (1)+(7)=8 and then back to original which will be -8