For the bookeeping by son goes to their house an afternoon or evening and does the work there. They have the program on their computer he just has to do the inputting and compiling the reports which the person then prints. This form then goes to their accountant. What he is really doing is what we do for our book keeping is to record what we spend etc.

For the maths there will be kids in elementary needing a tutor. There are some agencies that coordinate as in match up people needing a tutor and those available.

For the typing there will be bulletin boards all over campus. Just look for any board that has student's ads on it for books for sales, rooms for rent, and put ads up there for typing. Most buildings are open to the public so you can pretty well go wherever you want on campus.