Easy.
8) hexagon exterior angles = 360. 8c=360. 360/8= 45. **C=45 DEGREES**
9) convex hexagon exterior angles= 360.
Add all and set equal to 360. 45+60+x+3x+7x=11
=11x+105=360
X=23.1 degreees plug in and find largest angles. Too much work for 5 points bro