Answer:
40
Step-by-step explanation:
The sum of measure of exterior angles is equal to 360
5x-20+2x+5+x+15+x = 360 add like terms
9x = 360 divide both sides by 9
x = 40
Answer:
3
Step-by-step explanation:
To find the average add all these numbers together, then divide by how many numbers you have.


