Given the depth vs. clock time function y = f(t) = .021 t² + -2.04 t + 75, with depth in cm when clock time is in seconds, find the clock time when water depth is 75.45715 cm. Using the same function determine the depth at clock time t = 9 sec. Find t such that f(t) = 29.45714. Find f(t) when t = 27.