Answer:
280 people
Explanation:
The way that makes the most sense to solve this problem is by converting 0.004 people (ppl) per square foot (ft^2) to the number of square meters occupied by one person.
1) Convert given to square meters per person:
(0.004ppl)/(1ft^2) = (1ppl)/(xft^2) = 250 square meters per person
2) divide total area (70,000ft^2), by 250
70,000ft^2 / (250ft^2 / 1 ppl) = 280 people.
This seems like a very small answer but it works out with the given number you posted. You might want to double check to see if you misread 0.004.