92 [2 marks] Ahmad has started his own company, Ahmad Shirts, which manufactures imprinted shirts for special occasions. Since he has just begun this operation, he rents the equipment from a local printing shop when necessary. The cost of using the equipment is SAR 400. The materials used in one shirt cost SAR 9, and Ahmad can sell these for SAR 20 each. (a) If Ahmad sells 20 shirts, what will his total revenue be? What will his total variable cost be? (b) How many shirts must Ahmad sell to break even in units? In SAR? (C) What will be the profit or loss if 200 shirts are sold? show your calculations. 23 onsider the below investment alternatives: [4marks High Average Poor Worst NCB Stock 500 400 300 -100 SAMBA 300 150 50 -200 SABB 100 70 20 0 llah wants to select the best investment alternative based on the below techniques: Maximax Maxi-Min Equally likely Criterion of realism a=0.8