Round 80,531 to the nearest thousand

He concluded that a heavier object dropped from the same height as a lighter object will land

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)?

According to the data set, where should the upper quartile line of the box plot be placed?