You are planning to purchase displays for your store which has 2400 sq ft of selling space. each display has a footprint of 10ft x4 ft. you want to leave 60% open space in your store for walking around. how many displays can you fit

For this case, the sales space of the displays is given by:
 (2400) * (1-0.60) = 960 feet ^ 2
 We now look for the area of each display:
 (10) * (4) = 40 feet ^ 2
 With this information, we can then search the number of displays:
 N = (960) / (40)
 N = 24 displays
 
 you can fit 24 displays.