1. Write an equation that models the population growth of both cities.

umumumumum

im not sure

take the logarithm of both sides (the base of the log doesn't matter):

apply the exponent property - this says that :

distribute the log terms on both sides:

group like terms together:

divide through both sides by the coefficient on :

you can do some additional rewriting here using the properties of the logarithm to simplify things if you like:

combine all like terms then its just a 2 step equation