What is the LCD (LEAST common denominator

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 volume of a box varies directly with its length if a box in the group has a length of 30inches and k=24 what is its volume

Which function has the vertex at (2,6)