Multiple different forms in the picture attached - for these problems use Math-way is super easy
First is the exact form
Answer:
Not a factor
Step-by-step explanation:
We can use Factor Theorem to answer this question. According to this theorem, in order to find if (x - a) is a factor of a polynomial f(x), calculate f(a). If f(a) comes out to be equal to zero, this will mean that (x-a) is factor of f(x).
Here, the expression we have is (x + 7), so we need to find f(-7) in order to check if (x+7) is a factor of f(x) or not

Substituting x = -7, we get:

Since f(-7) ≠ 0, (x + 7) is not a factor of the polynomial f(x)
Answer:
7 inch
Step-by-step explanation:
Sqrt 49 = 7
Answer:
9 more weeks!
if you add 10 each week you find out.
Step-by-step explanation:
1 more week will be $109, 2 more weeks will be $119, 3 more weeks, $129, 4 more weeks $139, 5 more weeks will now be $149, the 6th week is $159, the 7th week is $169, the 8th week is $179, the 9th week will be $189. $189 is precisely what she needs for the camera.