For which pair of integers are both point the same distance from 4 on the number line

Which of the following is correct interpretation of the expression -4+13

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%

Solve the inequality and graph 6j - 7 < 5