Rodney collects 17 leaves and sheila collects 23 leaves. how many more leaves does sheila collect than rodney

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? *

Julia bought 7 hats a week later half of all her hats were destroyed in a fire. there are now only 12 hats left with how many did she start

Jeremy wants to determine the number of solutions for the equation below without actually solving the equation. which method should jeremy use?