Cory, Amanda, and Bryan together need a total of 9 days to finish painting the house. Amanda and Bryan together need 12 days to finish painting. How many days will it take for Cory to paint the house alone?

Which of the following properties can be used to show

An object in geometry with no width, length or height is a(n):

Is the response to the survey question "did you smoke in the last week question mark "response to the survey question "did you smoke in the last week? " a discrete random variable, a continuous random variable, or not a random variable?