okay so i'm going to ask a couple of questions, so can you please try to answer some of them if you know it. please && thank you 
1. How do free weights and dumbbells differ?
2. What is the job of a spotter?
3. What are the differences between sets and reps?
4. What is circuit training?
5. What are the differences between a total-body workout and a split-workout?
-please try to answer some. thanks
1. How do free weights and dumbbells differ?
2. What is the job of a spotter?
3. What are the differences between sets and reps?
4. What is circuit training?
5. What are the differences between a total-body workout and a split-workout?
-please try to answer some. thanks