Anormal population has a mean of 55 and a standard deviation of 13. you select a random sample of 25. compute the probability the sample mean is

Trish receives $450 on the first of each month. josh receives $450 on the last day of each month. both trish and josh will receive payments for next four years. at a discount rate of 9.5 percent, what is the difference in the present value of these two sets of payments?

When a rectangle is dilated, how do the perimeter and area of the rectangle change?

Hurry if the population of of an ant hill doubles every 10 days and there are currently 100 ants living in the ant hill what will the ant population be in 20 days