121 bricks in 16.5 minutes 22 brings in m minutes

How do you do this geometry problem

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)?

Find the equation of the line with slope =8 and passing through (6,53) write your equation in the form y=mx+b