Assume that the women's heights are normally distributed with a mean of 63.7 inches and a standard deviation of 2.9 inches If 30 women are randomly selected, find the probability that their mean height is greater than 65 inches.

Or a class trip a teacher brought 25 students tickets and 5 adult tickets: ~ write an expression for the total cost of tickets purchased ~if students tickets cost $4 each and adult tickets cost $6 each, how much money did the teacher spend on tickets?