A bacteria culture is grown with a population of 15 million cells and kept under observation. The cell population is found to double every hour. How can we use geometric sequences and series to find the total population after six hours? Show all work.

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%

The difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.

Write down in words the number 65 405