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What is the numerical ratio of the rate of change in the concentration of CO2 to the rate of change in the concentration of O2? How do I solve 70/80=√28.401/√X Please help? What far-reaching change came from the Crusades? What is the order of ALL college calculus courses? And please don't say calc 1 2 3 4.? A 2 kg chunk of putty moving at 5 m/s collides and sticks to a 5 kg bowling ball that is initially at rest.Mommentum?