Please help! which angles are congruent?

This is so hard and it’s for a test

If a company produces x units of an item at a cost of $35 apiece the function c=35x is a of the total production costs

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'?