Problem $4$: Consider three vectors, vec$(A),$vec$(B),$ and vec$(C)$ where

vec$(A)=(12\mathrm{.}9)hat(i)+(-9\mathrm{.}8)hat(j)$

vec$(C)=(28\mathrm{.}1)hat(i)$

what is the angle, in degrees of vec$($b$)$ with the respect to the x axis