Jessie incorrectly said the rate 1/2 gallon over 1/8 minute can be written as the unit rate 1/16 gallon per minute

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? *