Bob is broke. He had five dollars, but spent it all on cats. Part A: How many dollars Bob have left? Part B: Is Bob still broke?

Bob has zero dollars left meaning yes bob is broke

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:

the answer to your question is b.