Use the following picture for questions 6-8

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%

Aline passes through 3,7 and 6,9 what equation represents the line

The acceleration of an object due to gravity is 32 feet per second squared.what is acceleration due to gravity in inches per second squared?