Which one is it please help me

Find the sum of the measure of the interior angles of a polygon of 9 sides ; of 32 sides

Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =

Which exponential function has an initial value of 2? f(x) = 2(3x) f(x) = 3(2x)