The difference between a number and three is multiplied by negative six. The result is eighteen. What is the number? Write an equation that can be used to find the number, n.
Solve the equation you wrote in part A to find the value of the number. Include all of your work in your answer.

Twelve different video games showing substance use were observed and the duration times of game play (in seconds) are listed below. the design of the study justifies the assumption that the sample can be treated as a simple random sample. use the data to construct a 99% confidence interval estimate of μ, the mean duration of game play. 4028 4316 4816 4650 4036 5010 4833 4331 4307