Answer:
$0.05 per ounce
Explanation:
Mrs. O'Brien purchases 112 ounces of laundry detergent for $13.44.
Units price = Total cost of the detergent / number of ounces
= $13.44 / 112 ounces
= $0.12 per ounce
Mr. O'Brien purchases a 280 ounce container of laundry detergent for $19.60.
Units price =Total cost of the detergent / number of ounces
= $19.60 / 280 ounces
= $0.07 per ounce
Difference in the unit price per ounce for the laundry detergents Mr. And Mrs. O'Brien purchase = $0.12 per ounce - $0.07 per ounce
= $0.05 per ounce