A car travels 476 km in 5 hours (with a constant speed). How far can it travel in 1 hours (with the same speed)?

Factor the monomial completely 42a3b3

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

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%