Can someone please help

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? *

Explain how you could use the interactive table to tell if sets of points are on the same line. math 8

I’m really confused and need your assist me with this question i’ve never been taught