The equations are given in triangle abc: sides ab 3x + 2y-12 = 0, heights bm x + 2y-4 = 0, heights am 4x + y-6 = 0, where m is the intersection point of heights. find the equations of sides ab, bc and heights cm

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.