Wann see my web cam? jk jk I'm not that easy lol

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? *

Find the missing factor. write your answer inexponential form.9^2=9^4×

Either enter an exact answer in terms of \piπ or use 3.143.14 for \piπ and enter your answer as a decimal.