Can somebody plz help answer these questions correclty (like what each letter equals) thanks :3 WILL MARK BRAINLIEST WHOEVER CAN ANSWER THIS FIRST :DD

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.

Find the distance between the point (-3,-4), and (see the picture below)

Find the root(s) of f (x) = (x- 6)2(x + 2)2.