Answer:
8
Step-by-step explanation:
Answer:
17
Step-by-step explanation:

n = 4




The sum of all the angle measures is 180 degrees, now lets set up some equations:

Thus x = 22
Hope that helps!
Answer: 
Step-by-step explanation:
We can use the Rational Root Test.
Given a polynomial in the form:

Where:
- The coefficients are integers.
-
is the leading coeffcient (
)
-
is the constant term 
Every rational root of the polynomial is in the form:

For the case of the given polynomial:

We can observe that:
- Its constant term is 6, with factors 1, 2 and 3.
- Its leading coefficient is 2, with factors 1 and 2.
Then, by Rational Roots Test we get the possible rational roots of this polynomial:

The 9 digit is in the ten thousand place.The ten thousand place is less than hundred thousand , and it's greater than one thousand , hundred place , ten place ,and the ones place.