Which of the following points are part of the solution set to the inequality y ≤ −1\3 x +7
A.
(-9, 1)

B.
(3, 13)

C.
(12, -4)

D.
(3, 7)

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%

What value of x is in the solution set of 4x - 12 s 16 + 8x? -10 -9 -8 -7

Answer! if you don’t mind, can you explain