At the end of the night mrs. johnson works with student council to determine their profit on the fundraiser. the least popular item was chips, in which they sold only 21 bags. the chips cost a total of $48.50.were the chips profitable? explain your reasoning.

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 number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year

If the simple annual interest rate on a loan is 6, what is the interest rate in percentage per month?