FREE BRAINLIEST, for the first one to answer correctly

All per-unit concepts rely on ratios,meaning,to provide a type of measurement

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

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? *