The students compared the amount (in dollars) they spent on books each week. the box plot shows the results. the median amount they spent each week is blank> the difference of the first and third quartiles of the data set is blank

Abicycle training wheel has a radius of 3 inches. the bicycle wheel has a radius of 10 inches.approximately how much smaller, in square inches and rounded to the nearest hundredth, is the area of the training wheel than the area of the regular wheel? *