Find the common ratio of the geometric sequence 10,60,360,...

6(2x+y)+2(x+4y) how can i solve this

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

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.