Abookstore packs 6 books in a box. the total weight of the books is 14 1/4 pounds. if each book has the same weight, what is the weight of one book?

Rewrite the following without an exponent. (5/8)-1

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%

Will gve pints stars and brainliest