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11.C (5 points) A population of bacteria decreases according to the following model: P(t )=30( 0.75) * where P(t) is the population in thousands and t is the number of days since January 1st (t = 0 represents January 1st) a) How many bacteria are there on January 1st? b) In how many days will the number of bacteria decrease to a half of the original amount? D 12.D (5 points) Solve for x in log, (3x - 2) - log, (4x +1) = 2