please help x
these next few questions that I need help with are on the topic 'rearranging formulae', would really appreciate it if someone could help me out, it's all due tomorrow and I don't understand it... Can't get a detention!

1) v= 2a +3b + c (make c the subject of the formula)
2) A= (symbol for pi) t + 5t (make the subject of the formula)
3) R= 3s + (symbol for pi) s + 2t (make s the subject of the formula)
4) k= L ÷ m-L (make L the subject of the formula) then (make m the subject of the formula)
5) A= k (x+5) ÷ 3 (make x the subject of the formula)
6) R= u + v² ÷ u + v (make u the subject of the formula)
7) 3x² + 2 ÷ 5 = y ÷ 10 + y (make y the subject of the formula)
8) √a - 3 ÷ 5 = 4b rearrange this formula to give a in terms of b
9) S= 2(symbol for pi) d √h² + d² rearrange this formula to make h the subject

I know it's a lot but please help x you are really clever if you can x