Answer:
92
Step-by-step explanation:
add all the numbers and divide by 4, it is 88!
21/4
4 1/2 is 9/2 is 18/4
18/4+3/4=21/4
2 is 67
3 is 45
4 is 71
6 is x(all angles)
7 is 28
8 is 33