Not sure if my answer is right just checking.

What is the nth term rule of the linear sequence below? 27 , 25 , 23 , 21 , 19 , . .

For the equations below which statement is true ?

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.