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urgent need.

A Ferris wheel with maximum height 13m and
minimum height Im rotates at 10°/s. A certain seat
begins the ride at the bottom of the wheel. Determine
a function h(t) that models the height (in meters) of
the seat, t seconds after the ride began.​

Barney & noblet customers can choose to purchase a membership for $25 per year members receive 10% off all store purchases 1. how much would a member pay per year if he bought $50 worth of items each year? 2. write a slope-intercept equation that expresses how much a member pays per year using x to represent his purchases per year 3. how much would a member have to spend per year to pay off his membership fee?