6. Product A is a 12-ounce bottle of generic mouthwash that sells for $1.15. Product B is a 24-ounce bottle of mouthwash that costs $2.79. Which is the better buy?

12 oz = 1.15

24 oz = 2.79

Let's see if 2x12oz is less, equal, or more than the price of the 24oz.

1.15 x 2 = 2.30

2.30<2.79

12 oz is a better buy since 2 of them are cheaper than the 24 oz.