D. After 6 seconds, the Dynamic Drop is 18 feet below the top of the ride. What integer represents the average change in the ride's location in feet per Second?

What is the sum of the geometric series in which a1 = 7, r = 3, and an = 1,701? hint: cap s sub n equals start fraction a sub one left parenthesis one minus r to the power of n end power right parenthesis over one minus r end fraction comma r ≠ 1, where a1 is the first term and r is the common ratio