Answer: b
Explanation:
Both parties are affected- they both agreed to meet and sell/buy the book.
William Whewell Was the first scientist ever.
The process of indentifying the benefits and costs of different alternatives by examining the incremental effect on total revenue and total cost causes by a very small (just one unit) change in the output or input of each alternative. Marginal analysis supports decision-making based on marginal or incremental changes to resources instead of one based on total or averages.
