Plz i need help tomorrow is my test

What is the inverse of the function f(x) = 2x + 1?

What is the equation of a line passing through the point (6,1) and parallel to the line whose equation 3x=2y+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.