Answer:
3,000 cubic feet left of storage.
Explanation:
Giving the following information:
Big shelves (B):
Each big shelf costs $500.
It requires 100 cubic feet of storage space.
Medium shelves (M):
Each medium shelf costs $300
It requires 90 cubic feet of storage space.
The company has $75,000 to invest in shelves.
The warehouse has 18,000 cubic feet available for storage.
Mallory purchase 150 big shelves.
Amount of money= 150* 500= $75,000 (no money left).
Cubic feet= 150* 100= 15,000 cubic feets
3,000 cubic feet left of storage.