Vernon Entertainment sells souvenir T-shirts at each rock.concert that it sponsors. The shirts cost $14 each. Any excess shirts can be returned to the manufacturer for a full refund of the purchase price. The sales price is $21 per shlrt. Required a. What are the total cost of shirts and cost per shirt if sales amount to 9,000, 9,500, 10,000, 10,500, or 11,000? b. Is the cost of T-shirts a fixed or a variable cost? Complete this questlon by enterIng your answers in the tabs below. Required A Required B What are the total cost of shirts and cost per shirt if sales amount to 9,000, 9,500, 10,000, 10,500, or 11,000? Number of shirts sold Total cost of shirts 9,000 9,500 10,000 10,500 11,000 Cost per shirt Required A Required B > Vernon Entertainment sells souvenir T-shirts at each rock concert that it sponsors. The shirts cost $14 each. Any excess shirts can be returned to the manufacturer for a full refund of the purchase price. The sales price is $21 per shirt. Required a. What are the total cost of shirts and cost per shirt if sales amount to 9,000, 9,500, 10,000, 10,500, or 11,000? b. Is the cost of T-shirts a fixed or a variable cost? Complete thls question by entering your answers In the tabs below. Required A kequired B Is the cost of T-shirts a fixed or a variable cost? Since the total cost of shirts in Requirement A proportionately to the number of shirts sold, it is a Required A REquited B