$ΔABC$ is similar to $ΔDEF$.

1. Find the scale factor from $ΔABC$ to $ΔDEF$.

   Hint (a):

   Find the scale factor between two given similar sides for the two shapes.

   Answer (a):

   The scale factor is $5$.

2. Find $x$.

   Hint (b):

   Divide the side corresponding to side $x$ by the scale factor.

   $x=\frac{38.5}{5}$

3. Find $y$.

   Hint (c):

   Multiply the matching side by the scale factor.