Maths watch question pls help me

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

Find the value of x. give reasons to justify your solutions! h ∈ ig

Which of the following circles have their centers in the third quadrant?