The unit price can be calculated as:
[tex]\text{unit price=}\frac{\text{ cost of the pack}}{\text{units on the pack}}[/tex]Since every pack costs $9.72 and there are 0 plastic flower pots per pack, the unit price is:
[tex]\text{unit price = }\frac{9.72}{9}=1.08[/tex]Answer: $1.08 per pot