Please help me answer this question and find out how many chocolate bars Kyle has to melt to fit the mold.

If f(x) = 2x + 2 and g(x) = x? , what is (gºf)(2)?

The system of equations graphed below has how many solutions?

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