Quick! Please help. this needs to be 20 letters

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

Solutions for 2x+7 less than or equal to 3x-5

X2 + y 2 = 36 x + y = 6 solve the system of equations.