The answer is most likely (c).
This can be solve by first solving the proportionality constant
Number electic outlets rewired is directly proportional to
time spent
4 = (1 ½)a
Let be the proportionality constant
A = 8/3
O = (8/3)(7.5)
o = 20 outlets will jamal rewired if he works for 7.5 hrs
We know that
the angle MOP is equal to arc MNP because is a central angle
the answer is
angle MOP=126°