Given the depth vs. clock time function y = f(t) = .02 t² + -2.24 t + 69, with depth in cm when clock time is in seconds, find the clock time when water depth is 50.28 cm. Using the same function determine the depth at clock time t = 11 sec. Find t such that f(t) = 16.28. Find f(t) when t = 29.