Hi, I am currently struggling with Logarithms and exponentials in pre calc. the two in particular are f(x)=-2+logbase 1/2(x+2) sketch the graph and identify domain range x/Y intercept and end behaivor. and

In mediaeval times there were 10,000 people living in a city that was struck by a plague. the number of people living after 6 days was 8500, and after 12 was 7225 explain how you determine it is exponential and fill in a table and find an equation/common ratio.

Thanks a lot for any ideas or help for on where to start.