In a poll, 37% of the people polled answered yes to the question "are you in favor of the death penalty for a person convicted of murder? " the margin of error in the poll was 3%, and the estimate was made with 94% confidence. at least how many people were surveyed?

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

Suppose that a households monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hundreds of cubic feet, hcf). when graphed, the function gives a line with slope of 1.65. if the monthly cost for 13 hcf is $46.10 what is the monthly cost for 19 hcf?