How do you write an explicit and recursive equation with the sequence of numbers given: 5, 8, 12.8, 20.

The anwser cause i do not understand just plez

What is the solution to the system of equation graphed belowa.(0,-4)b.(2,5),1),-3)

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.