Answer:
correct option is A. $450
Explanation:
we know that half the cost of the business meeting or the business meeting lunch or the dinner that is deductible even
and if the meal are associate with the active businessman or the sole proprietor then half the amount that is here $900 tickets to the opera with client for meeting is deducted
so that is deducted = 
deducted amount = $450
so correct option is A. $450
I would think C. because A. would be cheaper prices, and B. is false, D. just does not sound right.
Answer:
the marginal revenue from selling the fifth unit is
$25
Explanation:
Perfect competition is market structure in which the following information:
All firms sell an identical product .
All firms are price takers , cannot influence the market price .
Market share has no influence on prices.
Buyers have complete informationabout the product being sold and the prices .
Resources for such a labor are perfectly mobile.
Firms can enter or exit the market without cost