The water rate in your county is $3.26 per one thousand gallons. The monthly water cost c for a resident is a function of the amount of water g (in thousands of gallons) that are consumed. a. Does this situation represent a linear function? Explain. b. Find the domain of the function. Is the domain discrete or continuous? Explain.

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