Which graph best show a train pulling into a station to drop off its passengers?

The anwser cause i do not understand just plez

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? *

Jeremy wants to determine the number of solutions for the equation below without actually solving the equation.