IT'S TIMED URGENT

A person sitting on a Ferris wheel rises and falls as the wheel turns. Suppose that the person's height above ground is described by the following function.
h(t)= 21.7 + 19.2 cos 1.4t

In this equation, h(t) is the height above ground in meters, t is the time in minutes.

Find the following. If necessary, round to the nearest hundredth.

Period of h _ minutes

Number of revolutions per minute : __

Amplitude of h : __ meters