A developer is considering building a shopping mall to serve customers in Anytown, Ontario. The town is currently served by two existing shopping malls. One is 60,000 sq. ft. and is located 2 miles from town. The other is 100,000 sq. ft. and is located 4 miles from town. Should the developer build an 80,000 sq. ft. mall 2 miles from town or a 200,000 sq. ft. mall 2.5 miles from town? Assume = 3.