Please help Write the number in standard form

5x10∧4

Can someone me and do the problem plz so i can understand it more better

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

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