Kendra was 46¼ inches tall. Three and a half years later, she was 49¾ inches tall. What was Kendra’s average yearly growth rate?

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)?

Me d is also an option but i couldn't get it in the picture

Why is x= 4 a solution to the proportion 14/x 56/1 6