Answer:
16 workers
Step-by-step explanation:
current demand = 15,000 customers x 2 hours per customer = 30,000 hours
we add the 2% cushion = 30,000 x 1.02 = 30,600 hours
if sales increase by 10% next year, next year's demand = 30,600 x 1.1 = 33,660 hours
33,660 hours / 2,080 hours per employee = 16.18 employees, which we should round to 16