Final answer:
It is cheaper to buy chicken from the neighborhood store rather than driving to the further store across town. The savings of 10 cents per pound at the further store are unlikely to offset the additional cost of gasoline for the longer trip.
Step-by-step explanation:
To determine whether it is cheaper to buy chicken from the neighborhood store or the furthest store across town, we need to calculate the total cost involved in each choice. This includes the cost of the chicken and the cost of the gasoline to drive to and from the store. The neighborhood store sells chicken for $2.89 per pound, so for 4 pounds the total cost would be 4 pounds × $2.89/pound = $11.56. The further store sells chicken for $2.79 per pound, so the total cost for 4 pounds would be 4 pounds × $2.79/pound = $11.16.
Next, we need to consider the cost of gasoline. Assuming an average fuel efficiency, we use the distance to calculate the round trip cost for both trips. However, given the slight difference in chicken prices and the significant difference in distance (2.2 miles vs. 8.7 miles), we can infer without exact calculations that the cost of gasoline for the longer trip will likely surpass the 10 cent savings per pound of the chicken, making the trip to the neighborhood store cheaper overall.