Final answer:
The question requires a cost comparison to determine which box of dog bones is more economical for Mrs. Barr's dogs. By calculating the cost per bone of each box, Mrs. Barr can find the best deal.
Step-by-step explanation:
The question appears to revolve around a mathematical problem of determining which box of dog bones provides the most cost-effective option for Mrs. Barr's dogs, Tank and Tucker. To provide a solution, we would need information on the price and the quantity of dog bones in each available option. By comparing the cost per bone from each box, Mrs. Barr can identify which purchase would be the most economical.
For example, if box A contains 20 bones and costs $10, and box B contains 30 bones and costs $12, we can calculate the cost per bone by dividing the total cost by the number of bones in each box. Box A would be $10 / 20 = $0.50 per bone, and box B would be $12 / 30 = $0.40 per bone. In this scenario, box B offers a lower cost per bone, making it the better option for Mrs. Barr to save money while providing for Tank and Tucker. This process is a straightforward application of unit pricing, which is commonly taught in middle school math.