<h2>
Answer:</h2>
Using the distributive property, we can simplify the expression.
4 × 3 = 12
4 ×
= 1
4 ×
= -2
Here is the simplified expression:

2x-13+3x-8+2x-3+2x-7+3x-1+2x+11+2x+9= (7-2)×180
16x-12=(7-2)×180
(7-2)×180 Work this out on a calculator
And then that answer=16x-12
Then you solve by adding 12 both sides and dividing by 16 both sides to get what x is.
We would need the info about the lengths of the sides of said polygon.

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Find 1/9 :
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Find 9/9 :
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Answer: The total amount is $324.-----------------------------------------------
Because 1/4 is a fractional number, it is also a ratio which means it is Rational. :)