What is the 401k contribution limit for a taxpayer, age 39, for tax year 2020

Question 5 spring semester final exam math evaluate

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)?

Is there an x intercept in the equation 60*1.15^x