What does the word “is” mean In math

Plot the points (0,6), (3,15.8), and (9.5,0) using the graphing tool, and find the function

What is the order of magnitude for the number of liters in a large bottle of soda served at a party

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? *