The nutrition facts label on a food package lists "iron 50%." what does this figure indicate?

i believe it is the last one. im sorry if im wrong!

the more fit you are, the faster the recovery. your heart rate drops most sharply in the first minute after you stop exercising; it should then fall about 20 beats a minute—a drop of less than 12 beats a minute is considered abnormal. this “recovery heart rate” is measured as part of an exercise stress test.