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Can anyone shed some light on how to solve this. Im having trouble with getting the equation.? Can the human body win against caffeine? Profit is given by the quadratic function P(q). Profit is $0 at q=13 and q=33. Maximal profit is $500. Find an expression for P(q)? Who are more likely to be around in 1 million years: plants or fungi? Why? What is the formula weight of acetic acid, CH3COOH, which is found in vinegar?