Time sensitive
which best describes the range of the function f(x) = 2/3(6)x after it has been reflected over the x-axis? all real numbers all real numbers less than 0 all real numbers greater than 0 all real numbers less than or equal to 0

If f(x)=x^3 and g(x)=2x+7 when g(x)=-5

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

Can someone, me with this.i really need with this