Help fast I can’t figure it out. Please show work 18 pts

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 is true about the solution to the system of inequalities shown? y > 3x + 1 y < 3x – 3 only values that satisfy y > 3x + 1 are solutions. only values that satisfy y < 3x – 3 are solutions. values that satisfy either y > 3x + 1 or y < 3x – 3 are solutions. there are no solutions.

Suppose $r$ and $s$ are the values of $x$ that satisfy the equation \[x^2 - 2mx + (m^2+2m+3) = 0\]for some real number $m$. find the minimum real value of $r^2+s^2$.