model for an airplane charter company that gave the profits, P  , based on the number, n, of people in a...

 model for an airplane charter company that gave the profits, P

 , based on the number, n, of people in a charter group. The equation was: 

 P=−9.8n2+872n−2100

where  n

  the size of the group that hires the charter company, and P

  is the total profits the company makes for accepting a charter group of that size.

How many people need to be in the group in order for the charter company to have a profit of $9,800?

Answer: [removed] people