1. The problem statement, all variables and given/known data Water is poured into a container that has a leak. The mass m of the water is given as a function of time t by m = 5.3t0.8 - 3.2t + 22, with t ≥ 0, m in grams, and t in seconds. (a) At what time is the water mass greatest, and (b) what is that greatest mass? What is the rate of mass change at (c) t = 1.6 s and (d) t = 4.9 s? Change g/s to kg/min for part c and d. 2. Relevant equations 3. The attempt at a solution I already got part a and part b, but I'm having trouble with parts c and d. This is what I got for the derivative: dm/dt=4.24t^-0.2-3.2 Part C: I plugged in 1.6 into my derivative and got 0.6595961104. then I multiplied by .06 to convert to kg/min and got 0.0395757666. But that's not the right answer.