we are given
[tex]h=\frac{1}{2}mk[/tex]
Since, we have to solve for m
so, we will isolate m on anyone side
step-1: Multiply both sides by 2
[tex]2*h=2*\frac{1}{2}mk[/tex]
[tex]2h=mk[/tex]
step-2: Divide both sides by k
[tex]\frac{2h}{k} =\frac{mk}{k}[/tex]
[tex]\frac{2h}{k} =m[/tex]
so, we get
[tex]m=\frac{2h}{k} [/tex]..............Answer