I need help please?!

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

If olu is twice as old as funmi if the sum of their ages is 60 how old is olu

Simplify 24÷(-2)(3)+7 a. -29 b. 3 c. 11