A farmer has 100 tons of potatoes that she can sell for a profit of $500 per ton. For each week that she delays shipment she can produce an additional 10 tons of potatoes unfortunately for each week she delays the profit decreases $25 a ton write a quadratic equation to represent the prophet and use it to determine when she should ship to maximize her profit and find the value of the maximum profit

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?