The gfc of any two even numbers is always even

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?

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?

What is the volume of a cone with a height of 6 cm in the radius of 2 cm