I believe you answer is c.x2-4 because of its form
Addition and multiplication
I’m pretty sure the power is 4
X-A=B
+A
X=A+B
i hope i helped you out
2pirad=360 deg
so
xrad/2pi=ydeg/360
times both sides by 360 to solve for ydeg
180xrad/pi=ydeg
so
7/9pi rad
180(7/9pi)/pi=ydeg
140=ydeg
140 deg
A is answer
