Gillepsie furniture buys two products for resale: big shelves (B) and medium shelves (M). each big shelf osts $500 and rewuies 100 cubic feet of storage, and each medium shelf costs $300 and rewuires 90 cubic feet of storage space. the company has $75,000 to invest in shelves this week, and the warehouse has 18,000 cubic feet available for storage. profit for each big shelf is $300 and for each medium shelf is $150. which of the following is an impossible purchase combination?

1). 100 big shelves and 82 medium shelves 2) 150 big shelves and 0 medium shelves 3) 100 big shelves and 100 medium shelves 4) 100 big shelves and 0 medium shelves