It's a hexagon.
The formula of the sum of internal angles in the polygon:
![S=(n-2)\cdot180^o](https://tex.z-dn.net/?f=S%3D%28n-2%29%5Ccdot180%5Eo)
Therefore
![112^o+133^o+128^o+100^o+120^o+x^o=(6-2)\cdot180^o\\\\593^o+x^o=720^o\ \ \ \ |-593^o\\\\x^o=127^o](https://tex.z-dn.net/?f=112%5Eo%2B133%5Eo%2B128%5Eo%2B100%5Eo%2B120%5Eo%2Bx%5Eo%3D%286-2%29%5Ccdot180%5Eo%5C%5C%5C%5C593%5Eo%2Bx%5Eo%3D720%5Eo%5C%20%5C%20%5C%20%5C%20%7C-593%5Eo%5C%5C%5C%5Cx%5Eo%3D127%5Eo)
Sorry if this came too late.
![_7C_3*_{46}C_2=36225](https://tex.z-dn.net/?f=_7C_3%2A_%7B46%7DC_2%3D36225)
Not sure if you were looking for an explanation or just the answer. Let me know if you want more details.
The pattern is add 1 to the first number and add 4 to the second number.
-4= Contraction
2.5=Expansion
2/3= Contraction
-3/4= Contraction
Best way to solve this, if the scale factor is less than one, is a contraction. If it is greater than one, than it is an expansion.
Answer
First subtract: 13 1/2 - 7 1/3 = 37/6
Second simplify: 37/6 = 6 1/6