Write an equation to find c. Plz help !!

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?

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

The larger of two number is 4 less than twice the smaller number. the sum is 41. find the numbers