What is the correct answer and how should I solve the problem?

2. [0/4 Points] DETAILS PREVIOUS ANSWERS SCALCET9 9.3.048. The air in a room with volume 180 m contains 0.4% carbon dioxide initially. Fresher air with only 0.05% carbon dioxide flows into the room at a rate of 2 m/min and the mixed air flows out at the same rate. Find the percentage p of carbon dioxide in the room as a function of time t (in minutes). p(t) = 9 -5e 90 X What happens to the percentage of carbon dioxide in the room in the long run? lim p(t) = 9 X %