What’s the answer 6-2(9)+6

The physical fitness of an athlete is often measured by how much oxygen the athlete takes in (which is recorded in milliliters per kilogram, ml/kg). the mean maximum oxygen uptake for elite athletes has been found to be 60 with a standard deviation of 7.2. assume that the distribution is approximately normal.

Which fraction is equal to 1hole and 2/5? a.3/5 b.75 c.57 d.73

Plz ( true - false) all triangles have interior angles whose measure sum to 90.