Which expression is equivalent to a/3b? a.) 3a/15b b.) 2a/6b c.) a-7/3b-7

What is the distance between (–2 1/2,-3) and (1, –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%

98 point question what is the record for most points in one