Will this workout plan build my physical fitness?

Sure it will help, but I would recommend mixing in some treadmill running and biking. Also work on your basic strength would help. How about the hundred push ups plan too?

A good pair of running shoes with arch support inserts can be had for well under $200. Start out walking, then jogging the running. You're not going to get much of a gym membership for $2...

800 dollars at the mall in the spports section

Just try it out.

yea 15..thats minimum age though they may not higher a 15yr old if they can get someone older but at 15 minimum wage is 2 dollars less so they pay u less.

Not at all. Just know the basic math. There're alot more important skills you need to be a trainer than math.

No one thing is going to fix everything. for your stomach I would say crunches and leg lifts. One gets the upper abs one gets the lower. Running is a excellent over all exercise but it can be hard ...

Sure, if you are looking for a part-time income. Generally these clubs are open long hours, so you can get hours that will fit with your school schedule. Eventually, you would probably want a job...