Required information The following information applies to the questions displayed below. Melissa recently paid $435 for round-trip airfare to San Francisco to attend a business conference for three days. Melissa also paid the following expenses: $680 fee to register for the conference, $270 per night for three nights' lodging, $175 for meals, and $225 for cab fare. (Leave no answers blank. Enter zero if applicable.) (Round your answer to the nearest dollar amount.) c. Suppose that Melissa made the trip to San Francisco primarily to visit the national parks and only attended the business conference as an incidental benefit of being present on the coast at that time. What amount of the airfare can Melissa deduct as a business expense? Answer is complete but not entirely correct. Deductible amoun $1,803