Idon’t understand this problem at all.

Which of the following answers is 7/9 simplified? 7/9 2/9 11/9 2/7

Which value of y will make the inequality y< -1 false?

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.