What is the solution to this system of equations?

What is the domain of the function y=3 ln x graphed below?

There is a 9% chance that a booked gig will get cancelled. if you have 4 gigs in a row, what is the probability none of them will get cancelled!

In the? 1970s, due to world? events, there was a gasoline shortage in the united states. there were often long lines of cars waiting at gas stations. if there were a million cars in? line, bumper to? bumper, with average length of 9.04 ? feet, how long would that line be in? miles?