Which of these expressions is not equivalent to the others? (3n -n) +9
(3n+7) - 6 - n+ 4
(3 n - n) + (7 - 6 + 4)
2 n+5

Negative 5 1/12 + negative 4 1/4 + 6 3/4

In right ∆abc shown below, the midpoint of hypotenuse ac is located at d and segment bd is drawn.if ab = 12 and bc = 16, then explain why bd = 10. hint: consider what you know about the diagonals of a rectangle.

What is the similarity ratio of a cube with volume 729m^3 to a cube with volume 3375 m^3