How do you factor quadratics when a=1?

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?

Keith runs 5 miles in 38 minutes. at the same rate, how many miles would he run in 57 minutes

Arectangular yard has area 96 square feet. if the width of the yard is 4 feet less than the length