Jared is at the grocery store buying dog food for his dogs. He wants to purchase the dog food at the lowest price per ounce. The table below shows the number of pounds of the different bags of food and the prices.
Bag Size
(in pounds)
Price
5 $4.80
10 $7.90
20 $16.20
50 $40.00
Which size bag of dog food should Jared buy?