The marketing manager of Drexel-Hall is considering two alternative advertising strategies,each of which would cost $ 15,000 per month. One strategy is advertise the name Drexel-Hall,which is expected to increase the monthly sales at all stores by 5 percent. The other strategy is to emphasize the low prices available at store2,which is expected to increase monthly sales at store 2 by $150,000,but to reduce sales by $ 30,000 per month at stores1 and 3.