When Jeriel commutes to work, the amount of time it takes him to arrive is normally distributed with a mean of 50 minutes and a standard deviation of 2.5 minutes. Using the empirical rule, determine the interval that represents the middle 95% of his commute times.

Jack has a rectangular piece of land, the area of which is represented by a1 = 9.5l. his brother has a different rectangular piece of land, the area of which is represented by a2 = l(14 − l). let a represent the area in square meters and l represent the length in meters of the pieces of land. the two equations plotted on a graph meet at a point as shown in the image