The circumference of the dinner plate is 37.68 inches. what are the radius and diameter of the dinner plate ? what is the area of the dinner plate?

Is this a polynomial function? i need to know asap

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?

Here is another math questions. i will keep asking different questions. 4^2x=6