Supplementary angles are two angles that have measures with a sum of 180 degrees. Angles 1 and 2 are supplementary and the measure of angle 2 is 3 degrees more than twice the measure of angle 1. Write a system of equations and use substitution to find the measures of angles 1 and 2.

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)?