Answer:
25.38 pounds for three roll
Step-by-step explanation:
Find and then compare the unit prices:
9.21 pounds per roll
25.38 pounds for three rolls => 8.46 pounds per roll
42.85 pounds for five rolls => 8.57 pounds per roll
Conclusion: 25.38 pounds for three rolls corresponds to the lowest (cheapest) unit price and is thus the best buy.
