Two trains leave towns 845 miles apart at the same time and travel toward each other. One train travels 19 mi/h slower than the other. If they meet in 5 hours, what is the rate of each train?

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)?

I'm confused on this could anyone me and show me what i need to do to solve it.

2. explain in words how you plot the point (4, −2) in a rectangular coordinate system.