Naomi used 2/3 gallon of gas to drive 15^1/5 miles. At this rate how many miles can naomi car travel per gallon

Find the number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.

According to statistics a person will devote 32 years to sleeping and watching tv. the number of years sleeping will exceed the number of years watching tv by 18. over a lifetime, how many years will the person spend on each of these activities

The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?