Final answer:
The expected costs in a restaurant owner's proposal to a radio station for concession stand services should be shared in the body of the proposal, with an appendix as an alternative for detailed data.
Step-by-step explanation:
When submitting a proposal to a local radio station to operate a concession stand during an all-day benefit as a restaurant owner, the expected costs should ideally be presented in the body of the proposal. Including them in the body allows all the pertinent information regarding the problem, the proposed solution, and the associated costs to be found in one continuous section, which generally consists of paragraphs discussing the issue at hand and presenting a solution. The costs can also be included in an appendix if they are extensive or require detailed tables or charts that would detract from the flow of the main text. However, including the costs in a separate email or only in the executive summary isn't advisable as the former may be overlooked and the latter is meant only to summarize the key points of the proposal.