Question

1.Humans breathe about 15 breathe in a minute.The average breath at rest contains 0.76 liter of air.About how many liters of air will you breathe while at rest for 25 minutes?
2.Greta ran the 400-m dash in 49.07 s.If Greta ran at a constant rate,how many meters did she run in one second?

14 years ago