the answer

The function P(x) = 85 25 log 5x models the percentage, P(x), of students who could recall the important features of a classroom lecture as a function of time, where x represents the number of days that have elapsed since the lecture was given. The figure shows the graph of the function. After how many days do only two-fifths of the students recall the important features of the classroom lecture? (Let P(x) = 40 and solve for x.) Locate the point on the graph that conveys this information. Ga Percent After how many days do only two-fifths of the students recall the important features of the classroom lecture? 3.5 days (Round to one decimal place as needed.) Locate the point on the graph that conveys this information. (Type an ordered pair.)