Please solve part C of question 1, and question 2. Thank you!!

A population of 100,000 consumers is grouped as follows: 30,000 users of Brand A, 30,000 users of Brand B, and 40,000 who use neither brand. During any month, a Brand A user has a 20% probability of switching to Brand B and a 5% probability of not using either brand. A Brand B user has a 15% probability of switching to Brand A and a 10% probability of not using either brand. A nonuser has a 10% probability of purchasing Brand A and a 15% probability of purchasing Brand B. How many people will be in each group in 1 month, in 2 months, and in 18 months? (Round your answers to the nearest whole number.) (a) in 1 month Brand A 31000 people Brand B 34500 people neither 34500 people (b) in 2 months Brand A 31875 people Brand B 37250 people neither 30875 people (c) in 18 months Brand A 32581 X people Brand B 38944 X people neither 28475 X people In a population of 400,000 people, 120,000 are infected with a virus. After a person becomes infected and then recovers, the person is immune (cannot become infected again). Of the people who are infected, 3% will die each year and the others will recover. Of the people who have never been infected, 25% will become infected each year. How many people will be infected in 4 years? (Round your answer to the nearest whole number.) people