Answer: If it is [tex]p(x)=\frac{90}{(9+50e^{-x})}[/tex], then: [tex]p(3)=7.83[/tex] If it is [tex]p(x)=\frac{90}{9}+50e^{-x}[/tex], then: [tex]p(3)=12.48[/tex] Step-by-step explanation: To solve this exercise you must substiute x=3 into the expression given in the problem. 1) If the expression is [tex]p(x)=\frac{90}{(9+50e^{-x})}[/tex], you obtain: [tex]p(3)=\frac{90}{(9+50e^{-(3)})}[/tex] [tex]p(3)=7.83[/tex] 2) If the expression is [tex]p(x)=\frac{90}{9}+50e^{-x}[/tex], you obtain: [tex]p(3)=\frac{90}{9}+50e^{-(3)}\\p(3)=12.48[/tex]