Using 3.14 for pi what is the volume of the spere to the nearest tenth? I'm having trouble answering it

The table respent two linear functions the equation respented by the first tables is given

If i have one apple and give you the apple, how many apples do i have?

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.