Please help me with this

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 of the following functions is graphed above? a. f(x) = 4log(x + 4) b. f(x) = -4log(x + 4) c. f(x) = 4log(-x - 4) d. f(x) = -4log(-x + 4)

Which of the following can be contained in a plane? a point a line a ray an angle (no pic btw)