Over a period of 300 days, Shawna Johnson earned $450 interest in a retirement account paying interest at a rate of 5%. Find the amount in the account at the end of 300 days.

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%

Billy plotted −3 4 and −1 4 on a number line to determine that −3 4 is smaller than −1 4 is he correct? explain why or why not?

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41