RE: how many reps?
depends on what muscle group. for bodybuilding i say
i find that for example, bi and tri need 10-12
chest needs 8-10
back anywhere from 3-5 to 10
calves abs 12-15
quads anywhere from 3-10
its variation really, there is no set range, also depends on what excericse your doing as well and whether you plateau on a certain weight.
Hazard a touch of narcissism without shame.
There is no room for junk food in any diet whatsoever, leave the junk in the bin.