Higher altitudes can present challenges to mountain climbers and hikers. One of those challenges is dealing with air pressure changes. A rule of thumb is that air pressure (using inches of mercury) drops about 1 inch for every 1000-foot increase in height above sea level. 1. Given that the air pressure at sea level is 30 inches of mercury, write a formula for air pressure as a function of height above sea level for this rule of thumb. Call this function the Climber's Estimate and use the function notation C(h)