What is the value of y = 3x -1 when x is equal to 4? Group of answer choices

-11

12

11

-12

Is fgh ~ jkl? if so, identify the similarity postulate or theorem that applies.

Answer this question! 30 points and brainliest! only if you know the answer.

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%