ILL DO ANYTHING JUST PLEASE HELP

In the triangle abc< angle c is a right angle. find the value of the trig function indicated. find tan a if a =12, b=5 a. 13/12 b. 12/13 c. 5/12 d.12/5

Find the volume of the solid generated when the region bounded by y= x and y= 4√x is revolved about the x-axis the volume of the solid is: (type an exact answer cubic units)

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)