Answer:
The distance between the two playing pieces is of 6.4 units.
Step-by-step explanation:
Suppose we have two points:


The distance between these points is:

Distance between:
A(-2,3) and B(3,-1)

The distance between the two playing pieces is of 6.4 units.

8 out of 300 were defective.
80 pairs were defective
I'm not sure but I think it would be 10 pens hope this helps.