7 points Save Answer tion 13 Astore buys books to itssupplier for AED 30 and sets them for AED 50each. The additional costs are 20% ofthe bu ng cost. The sore buys 100toes and sets 80 0, hem at the regular price, and the rest, on sale, at the buying price What is the total additional cost? What is the total buying cost? What is the total cost? What is the total revenue? \" What is the net income? A 600 B Profit C 3600 D. Loss E. 4600 F 1000 G 3000 H 28% 30% Is the net income profit or loss? ?? What is the profit/loss as a percentage of the total cost to the nearest percentage? 
Workings:
 
 Dear Student,
 Best effort has been made to give quality and correct answer. But if you find any issues please comment your concern. I will definitely resolve your query.
       | Total Additional Cost | 3000*20% | $            600 | 
    | Total Buying Cost | 100*30 | $        3,000 | 
    | Total Cost | 3000+600 | $        3,600 | 
    | Total Revenue | 4000+600 | $        4,600 | 
    | Net Income | 4600-3600 | $        1,000 | 
    | Is Net Income Profit/(Loss) |  | Profit | 
    | Profit as % of Cost | 1000/3600*100 | 28% |