Answer:
60
Step-by-step explanation:
every angle is the same and 1/3 of 180 is 60
1/3
there is a total of 3 guitar picks
x=53/9
(x-2):5=7:9
9x-18=35
9x=35+18
9x=53
The answer is 100 degree
240 minutes/ 4 hours