Find the volume of the shape below

If i have 20$ and i gave 5$ away how much i got

If f(x)=x+7 and g(x)=1/x what is (fog)(x)

Quadrilateral efgh was dilated with the origin as the center of dilation to create quadrilateral e'f'g'h'. the quadrilateral was dilated using a scale factor of 2.5. the lengths of the sides of quadrilateral efgh are given. what is the length of side f'g'?