The hanger diagram models the equation 2(n + 7) = 24. What could be the first step in using the diagram to find the value of n? What could be the first
step reasoning about the equation to find the value of n? How are these
steps the same or different?
Please help

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%

Select the point that is a solution to the system of inequalities. y< =-x+3 y=x^(2)-3x

Which of the following functions corresponds to the above sinusoid? a. 10 cos πx - 5 b. -5 sin x - 5 c. -10 cos πx/2 - 0.5 d. 10 sin πx - 5