Kelly flies a distance of 2,109 miles. the trip takes 4 2/3 hours what is the airplanes unit rate of speed in miles per hour?

at this rate of speed, how many miles the airplane travel in 1 1/2 hours?

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.

8000 + 8800 + 8000 + 8 million + 80 trillion + another a katrillion equals

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 360, a standard deviation of 4, and a margin of error of 2.5%