Answer
a) See image
b) $F_{Hx}=51.2N$
$F_{Hy}=8.64N$
c) $d=2.35m$
Work Step by Step
b) $F_{Hy}=-22N-g3.8kg+85N\cos(37^o)=8.64N$
$F_{Hx}=85N\sin(37^o)=51.2N$
c) $\sum\tau=-d(22Nsin(53^o))-(2.5m)(38Nsin(53^o))+(5.0m)(85Nsin(16^o))=0$
$d=2.35m$