Find the perimeter of this please help.

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

What is the anwers for 9+2x=5x-3-x

The following hormone had their receptors in the cell membrane except a-insulin b-tsh c-gh d- cortisol