The reading element expression includes the ability to

So i have a lot of answers answered but it says i still need to answer more questions. why is it doing that? how many questions need to be answered?

What should you not do when doing abdominal workouts? a. keep your chin off your chest b. keep your head aligned with the spine c. put pressure on your neck d. all of the above

Mary is 14 year old her resting heart rate is 70 beats per minute. calculate 50% of mary's maximum heart rate to fine her target heart rate