Make b the subject of the relation$lb=\tfrac{1}{2}(a+b)h$

If $F=\frac{9}{5}C+32$, find C when F =98.6

Make x the subject of the formula $d=\sqrt{\frac{6}{x}-\frac{y}{2}}$

Make f  the subject of the relation $v=u+ft$

Make k the subject of the relation $T=\sqrt{\frac{Tk-H}{k-H}}$ 

If $P={{\left[ \frac{Q(R-T)}{15} \right]}^{\tfrac{1}{3}}}$ Make T the subject of the relation

Make w the subject of the relation $\frac{a+bc}{wd+f}=g$

If $p=\tfrac{3}{5}\sqrt{\tfrac{q}{r}}$ express q in term of p and r

Make s the subject of the relation: $p=s+\frac{s{{m}^{2}}}{nr}$

If  $y=\frac{2\sqrt{{{x}^{2}}+m}}{3N}$ make x the subject of the formula