A big showroom has 0.25 million square feet. At the last summer sale, the manager surveyed the showroom to make sure there wasn't overcrowding. They found the population density to 0.003 people per square foot. This included all people in the building. How many total people attended the summer sale at this showroom on that day?

750

Step-by-step explanation:

The big showroom has an area of 0.25 million sq. ft.

In the last summer sale, it is surveyed that the population density was 0.003 people per sq. feet and that included all the people in the building.

Therefore, the number of people who attended the summer sale at this showroom on that day was (0.003 * 0.25 * 1000000) = 750. (Answer)

{Since 1 million = 1000000}