Final answer:
To calculate the retailer's annual demand for Puffs tissues, multiply the average weekly demand (39 cases) by the number of weeks in a year (52), resulting in 2028 cases/year. The retailer should order 2028 cases annually to meet this demand.
Step-by-step explanation:
To calculate the retailer's annual demand for Puffs tissues, we need to multiply the average weekly demand by the number of weeks in a year. Since the retailer's average weekly demand is 39 cases, and there are 52 weeks in a year, the calculation for annual demand will be as follows:
Annual Demand = Average Weekly Demand × Number of Weeks in a Year = 39 cases/week × 52 weeks/year = 2028 cases/year.
To meet this demand efficiently, the retailer should order 2028 cases of Puffs tissues for the year.