Tamara earns her living as a salary plus commission employee. her annual salary is $48,000, and she earns 4% commission on all sales she makes. if tamara wants to make a total of $6,000 this month, how much in sales does she need to have?

For a science project, a high school research team conducted a survey of local air temperatures. based on the results of the survey, the found that the average temperatures were around 10 degrees higher than expected. this result was wrong. the trouble with the survey was that most of the locations were exposed to direct sunlight and located over asphalt or sand, which resulted in higher temperatures than normal. this is a classic example of an error in which phase of inferential statistics?