math

pre-calc
One day, a controversial video is posted on the Internet that seemingly gives concrete evidence of life on other planets. Suppose that 50 people see the video the first day after it is posted and that this number doubles everyday after that.

a) write an expression to describe the number of people who have seen the video t days after it is posted.

b) one week later, a second video is posted that reveals the first as a hoax. Suppose that 20 people see this video the first day after it is posed and that this number triples every day after that. Write an expression to describe the number of people who have seen the 2nd video t days after it is posted.

c) set the two expressions from parts a and b to equal each other and then solve for t. What does this solution mean?

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