Final answer:
The price in a store in Portland, Maine, would be higher due to shipping costs. The store in San Francisco has less shipping cost because it is closer to the manufacturing plant.
Step-by-step explanation:
The price of a product in a store in Portland, Maine, would be higher than the price for the same product in a store in San Francisco, California due to shipping costs. The manufacturing plant is located in Sacramento, California, which is closer to San Francisco. Therefore, there would be less shipping cost included in the price for the store in San Francisco. On the other hand, the store in Portland, Maine, is geographically farther from the manufacturing plant, so there would be more shipping cost included in the price, making the product more expensive.