I’m confused as to what the answer is .

Q'R'

Step-by-step explanation:

The reason the tick marks are next to the letters is another way to say "prime"

This is basically saying, this is the new placement of the old letter

Since the quadrilateral is reflected over the x-axis, the distances between points don't change. Therefore, QR will be the same length as Q'R'

below

step-by-step explanation:

1. 5/1

2. 10/16

3. 90/2

4. 1/20

5. 3/1

6. 14/24

7. 1/4

8. 18/10