Please help, In circle M the picture is there

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)?

Give all possible names for the line shown. calculation tip: lines can be written with either point first.

Find the midpoint m of z1=(8+5i) and z2=(12+3i)