Asalesperson earning a 22.5% commision takes home $1200 as a commission. what was the dollar value of the items she sold

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%

Complete the equation of the live through (-1,6) (7,-2)

Use the distance formula to find the distance between (-3,5) and (3,1)