You are at a concert and the seating area is shown below. Using the standard rule of thumb (1 person per 2.5 sq. ft.), estimate the attendance (to the nearest whole person).

We are given
length of seating =625 ft
width of seating =300ft
now, we can find area of seating
[tex]A=625\times 300 ft^2[/tex]
[tex]A=187500 ft^2[/tex]
We are given
the standard rule of thumb
1 person = 2.5 sq. ft
we have to find total number of person
so,
[tex]N=\frac{187500ft^2}{2.5ft^2}[/tex]
[tex]N=75000[/tex]
So, the attendance is 75000 persons..........Answer