When Sam is 13 his mother will be 39 which is 3 times as old as he is. So Sam's mother will be 3 times as old as Sam will be in 11 years. (Your answer is 11 years.)
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:
x = 2
Step-by-step explanation:
9^2 or 9(9) = 81
<span>it depends on what type of format is used.</span>