Step-by-step explanation:
explain step by step on photo, double check just in case
The first thing we must do is calculate the circumeference:

now, calculate the angle of arc
360° = 49.612
360° - 66.4° - 180° = x
x = 113.6°
now, to calculate the arc length it would be:
33square2 i think that is what it is
a. difference in wages = 941 - 770 = $171
as a percentage tis is (171/770) * 100
= 22.2 % answer