Which equation could be represented by the number line? O A. -5 + 7 = 2
O B. 4 +(-7)=-3
O C. 7 +(-6) = 1
O D. -3 + (-4)= -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%

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10

Write an equation of the line that passes through 9,2 and is parallel to the line y=5/3x+9