Please help me on this question. It is urgent. Thanks in advance!

1/3(x-10)=-4 solve for x with steps

Can anyone me with 32,33,36,37,and 40.

Find the volume of the described solid.the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x.a) 441b) 147c) 864d) 882