Write two expressions that are equivalent to 8x(x+16)

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.

How do i make someone brainliest? (if you answer me, i might be able to make you brainliest! )

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%