using this diagram show full working

A person is attempting to push a wheelbarrow up an incline. The leg support of the wheelbarrow $($point B$)$ acts as a rough surface support. The wheel $($point D$)$ acts as a roller support and the slope of the incline at this point is $\backslash$alpha $.$ A force $($F$)$ acts on the handle $($point A$)$ at an angle of $\backslash$theta $.$ The weight of the wheelbarrow $($m$)$ acts at point C$.$

Variable F m h$1$ h$2$ w$1$ w$2$ w$3\backslash$alpha $\backslash$theta g

Value $300400\mathrm{.}70\mathrm{.}30\mathrm{.}50\mathrm{.}20\mathrm{.}650759\mathrm{.}81$

Units $[$N$][$kg$][$m$][$m$][$m$][$m$][$m$][$degrees$][$degrees$][$ms$-2]$

Given the information in the table above, determine:

$1)$ the magnitude of the reaction force at the wheel $($point D$),$

Answer for part $1$

$490$

$[$N$],(3$ sigfig$)$

$2)$ the reaction force in the x$-$direction at the leg support $($point B$),$

Answer for part $2$

$[$N$],(3$ sigfig, including sign: $+/-)$

$3)$ the reaction force in the y$-$direction at the leg support $($point B$),$

Answer for part $3$

$[$N$],(3$ sigfig, including sign: $+/-)$