Answer:
Exersise improves sleep because exersise make you tired and fall asleep easier. It decreases tensions in your body. The longer and easier you fall asleep the better quality it is.
Explanation:
25% failed
90 passed
120 wrote
120-90
=30
30/120
=0,25
0,25 × 100
=25% failed
SORRY I DON'T KNOW
MAYBE I CAN HELP YOU OTHER WAY OUT