Consider the following system of equations and their graphs as pictures. Find the solutions to the system
y=x^2-3x-5
y=2x=9
Enter your answer as an ordered pair in the format (x, y)
Enter your answer as an ordered pair in the format (x, y)

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.