A survey of 102 high school students on the amount of money they spend on prom yields an average of $893. Assuming the population standard deviation is $450, calculate the 88% confidence interval for the mean amount spent on prom. Round off the margin of error and the limits to the nearest whole number.

Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions: y > 2x + 3y is less than negative 3 over 2 times x minus 4part a: describe the graph of the system, including shading and the types of lines graphed. provide a description of the solution area. (6 points)part b: is the point (â’4, 6) included in the solution area for the system? justify your answer mathematically. (4 points)