Can anybody tell me what this is?

Margie and her sister wanted to purchase a bag of popcorn for movie night. They compared the prices and sizes of four bags of popcorn.


Pop-A-Lot Pop Kornz Pop-arazzi Kernels Popcorn
Size 8 ounces 12 ounces 11 ounce 6 ounces
Cost $4.32 $7.44 $6.27 $4.38


Part A: Calculate the corresponding unit rate for each package. (2 points)

Part B: Interpret what the unit rates found in Part A represent. (1 point)

Part C: Choose which package is the best buy. (1 point)