Obmpia Prodictions incorporated makes award medallions that are attoched to ribbons. Each medalion requires 18 inches of ribogn. The sates forecast for March is 2,400 medalikons. Estimated beginning inventories and desired ending inventories for inches of nabch are as follows: (Assume 18 inches -0.5 yards) Required: a. Calculate the number of medalions to be produced in March. b. Calculate the number of yards of ribbon to be purchased in March