I need help asap .

On a set of steps, the first step from the base of the steps is labeled 1, the second is labeled 2, and so on.
Each step has the same height. The table below shows the step number and step's height from the base of
the steps
Step number
50
90
110
Height from the base (meters)
10
18
22
Write an equation to describe the relationship between n. the step number, and h, the height from the
base.