M21 = 2x - 5
m22 = x - 40

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?

The perimeter of a triangle is 69 cm. the first is 5 cm shorter than the second side. the third side is twice as long the first side. find the length of each side

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?