The numerator is an x

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?

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?

8000 + 8800 + 8000 + 8 million + 80 trillion + another a katrillion equals