Compute each sum below. Give exact values, not decimal approximations. If the sum does not exist, click on "No sum". The number of milligrams D (h) of a certain drug that is in a pab'ent's bloodstream 11 hours after the drug is injected is given by the Following function. 13(11): soc\"5* when the number of milligrams reaches 33, the drug is to be injected again. How much time is needed between injections? Round your answer to the nearest tenth, and do not round anyr intermediate computations. I] hours X 8 n