Pls help (see picture)

Answer:
6.8
Step-by-step explanation:
Similar means the same shape but smaller. So we have to find the connection between 17 and 5. Which can be achieved by this equation
17/5=3.4
Now we apply the number 3.4 to find the length of PQ using the same side on the similar shape
2*3.4=6.8
Hope this helps and I’m sorry to ask but I would love a Brainliest