Ahorse ran 800 meters in 40 seconds 1260 seconds and 480 m in 24 seconds is this a proportional relationship so what is of the constant of proportionality?
what does it represent right an equation to represent the distance d in meters that the horse runs in t seconds

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)?