Which set of coordinates satisfies the system of equations y= x-3 and y=-2x+1?

20 only answer if 100% sure most high school-aged teens are very active. a. true b. false

1foot = 12 inches; 1 yard = 3 feet

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%