@Christine –let’s turn that “try” into “will” now if 3 times is hard for you right now, then re-evaluate and come up with a number of times you can workout.

@michele glad I can help

@jenn I wouldn’t expect any less from you =)

I know you want a simple answer to a complex question. There are some many theories out there regarding strength training. Personally, if you are short on time I’m not a fan of “resting between sets” I recommending couple different exercises together so I’m moving from one exercise to the next vs. focusing on 1 exercise rest and then moving on. Ex. I’m doing bent over rows and moving on to lunges and back to bent over rows, etc. Make sense?

If you are short on time, I’d focus on full body exercises versus body part splits so that you are hitting as many muscle groups as possible on a regular basis.
You would do push exercises one day and pull exercise the next day.

As for rep counts the key is to keep your body always guessing. You can change the rep count every 4-6 weeks. For muscle growth you’ll do 3+ sets of low and heavy reps. General health 1-3 sets of 12-16 reps. Endurance 1-3 reps 10-12 reps. Please remember YOU MUST change your workout every 4-6 weeks.
I hope that answers your question.