Originally Posted by

**funnytim** Hi all,

I just a few questions on Math 12, not sure how to do these questions (I need to know the how-to more than the answer itself):

1) "The population of a type of bacteria triples every 20 hours. In how many hours will a population of 30 become a population of 1000?"

2) "Solve for x: log(subcript a) a ^ 2x = log (subscript b^2) b^(3x-3)

3) Simplify: [log (subscript: 1/x) 1/y ] - [log (subscript 1/x) y ] - [log (subscript X) 1/y]

(This is from the Logarithms unit).

Thanks a lot in advance!