One must travel 16 miles before rate B becomes the cheapest rate.
Answer:
(x+7) is not a factor
Step-by-step explanation:
we know that
If (x+7) is a factor of f(x)
then
For 
Verify
we have

Substitute x=-7




therefore
(x+7) is not a factor
Answer:
It is B
Step-by-step explanation:
Answer:
Algebraic expression ;

Step-by-step explanation:
4 is subtracted from r means the same as r decreased by 4
Subtracted = -
