Get detailed and reliable answers to your questions on IDNLearn.com. Ask anything and receive immediate, well-informed answers from our dedicated community of experts.

the profitability, p, of a popular restaurant franchise can be modeled by the function p(t)=t^4 - 9t^3 + 24t^2 - 20t, where t is the number of months since the restaurant opened. how many months after the franchise opens will it begin to show a profit?