Please help will mark brainliest!

Every time you drive you will experience a combination of driving conditions and environments.

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 are the coordinates of the midpoint of ab? ,1/2) /2,-1) ,-3/2) /2,-2)