The amount absorbed is (ct - 0.05) (generalizing the case where only available oxygen is absorbed in

Question:

The amount absorbed is α(ct - 0.05) (generalizing the case where only available oxygen is absorbed in Exercises 29 and 30). How does the amount absorbed with this value of a compare with the amount of oxygen absorbed in Example 1.9.9?
Find the value of the parameter that produces an exhaled concentration of exactly 0.15. Assume γ = 0.21 and q = 0.1.