Convert each measure to degrees. round answers to the nearest hundredth if needed. a.) π/9 b.)−2π/3

To convert an angle from units of radians to the units of degrees, we need a conversion factor to multiply. From what I've learned, we just have to multiply the value 180°/π. We convert as follows:

a.) π/9 (180°/π) = 20°

b.)−2π/3(180°/π)  = -120°

12+3b -1=-5-b -12-1+5=-b-3b -8=-4b

The answer would be a