Angles. The problems are down below

Terri makes a quilt using three sizes of fabric squares the side lenght of each fabric square is the square root of the area

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)?

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2