8-4x for x = 9
The expression equals I

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.

With alll of except for the 2 that i did already

What is the ordered pair of m’ after point m (5, 6) is rotated 90° counterclockwise?