What is the lcm of 13 and 20, 11 and 13, 17 and 7, and 17 and 8?soon

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.

The graph shows the amount of total rainfall at each hour what was the total rainfall amount after three hours

What is the following sum in simplest form? square root 8 + 3 square root 2 + square root 32