NEED HELP again

I purchased four hand-crafted glass sculptures at the county fair. Each of the sculpture was shaped like a rectangular prism, as shown. How much glass was used to make the four hand-crafted glass sculptures?

240 in.2

240 in.3

424 in.3

464 in.3

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?