Identify area of figure square with semi circle rounded to nearest tenth 11 in 14 in 22 in

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%

W-16=-12 solve each one step equation plz

What is the measure of sty in oo below? 130 310 230 50