(4,-3)and has a slope of 3.

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%

Reflect the point (7,0) across the y-axis

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)