15. The table below shows the number of rectangular tiles needed to cover square shaped floors with certain side lengths. If the number of
tiles is proportional to the area of the floor, how many tiles would be
needed for a square shaped floor with a side length of 9 feet?

Brook states that the distance on the line is 4 units. caleb states that the whole line does not have a distance because it continues on forever. vivian states that the line is 6 units long. which distance did brook measure? which distance did vivian measure?

This is about circle theorems. someone asap : (

Every weekday, mr. jones bikes from his home to his job. sometimes he rides along two roads, the long route that is shown by the solid lines. other times, he takes the shortcut shown by the dashed line. how many fewer kilometers does mr. jones bike when he takes the shortcut instead of the long route?