At a supermarket, a 6-ounce bottle of salad dressing costs 1.56 A14 ounce bottle costs 3.36 A 20-ounce bottle costs 5.60 Which is the better buy? square .

To determine which bottle of salad dressing is the better buy, we need to calculate the unit price for each bottle. The unit price is the cost per ounce of the bottle.<br /><br />Let's start with the 6-ounce bottle:<br />Unit price = Total cost / Number of ounces<br />Unit price = $1.56 / 6<br />Unit price = $0.26 per ounce<br /><br />Now let's calculate the unit price for the 12-ounce bottle:<br />Unit price = Total cost / Number of ounces<br />Unit price = $3.36 / 12<br />Unit price = $0.28 per ounce<br /><br />Finally, let's calculate the unit price for the 20-ounce bottle:<br />Unit price = Total cost / Number of ounces<br />Unit price = $5.60 / 20<br />Unit price = $0.28 per ounce<br /><br />Comparing the unit prices, we can see that the 6-ounce bottle has the lowest unit price at $0.26 per ounce. Therefore, the 6-ounce bottle is the better buy.