On a test that has a normal distribution, a score of 65 falls one standard deviation above the mean, and a score of 41 falls two standard deviations below the mean. Determine the mean of this test.

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126