2_ 3 + 2.3= 3 giving 25 points for the right answer asap

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.

8litres of paint can cover 129.6 m². how much paint is required to paint an area of 243m²?

You eat $0.85 for every cup of hot chocolate you sell. how many cups do you need to sell to earn $55.25