Answer:
[tex]6147\:Tickets[/tex]
Step-by-step explanation:
Area of the first level [tex]=75 X 75=5625 \:ft^2[/tex]
Area of the second level [tex]=130 X 60=7800 \:ft^2[/tex]
Total Area of Standing Room [tex]=5625+7800=13425 \:ft^2[/tex]
Since each person will occupy 2.25 square feet.
Number of Persons that will occupy the standing room
[tex]= 13425 \div 2.25\\=5966.7 \approx 5767\:persons[/tex]
Therefore the number of Tickets that should be sold
=Number of seats + Number for standing Room
=180+5967
[tex]\approx 6147\:tickets[/tex]
Therefore, the concert venue should sell 6,147 tickets.