Let m = minutes of commercial
30/90 = 8/m
Solve for m.
90(8) = 30m
720 = 30m
720/30 = m
24 = m
2x+2x+60=180 because the angles have to add up to 180
So you have
4x+60=180
4x=120
x=30
Answer: has no equal sign
A: 0 3 4 5 5 6 7 9 9 20
3 3 5 5 6 8 8 9 9
B: No, they are not symmetric
