$(8\%)$ Problem $4$: For vectors vec$(B)=-$hat$()-4$hat$()$ and vec$(A)=-3$hat$(i)-2$hat$().$

$25\%$ Part $($b$)$ Calculate the direction of vec$(A)+$vec$(B),$ in degrees, measured counterclockwise from the positive x$-$axis.

$25\%$ Part $($c$)$ Calculate the magnitude of vec$(A)-$vec$(B).$

$25\%$ Part $($d$)$ Calculate the direction of vec$(A)-$vec$(B),$ in degrees measured counterclockwise from the positive x$-$axis.