PLEASE HELP! I REALLY NED IT ASAP

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

Which value would be a solution for x in the inequality 47-4x< 7

Find the distance between the point (-3,-4), and (see the picture below)