A garage band wants to hold the concert. The expected crowd is 3000. The average expenditures on concessions is $15.

 A garage band wants to hold the concert. The expected crowd is 3000. The average expenditures on concessions is $15. Ticket sales for $10 each, and the bands profit is 80% of the gate, along with concession sales, minus the fixed cost $10,000. Develop  A general mathematical model and implement it on a spreadsheet to find their expected profit .