Identity the vertex, focus, and directrix

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)?

Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. consider the given table.

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76