What is the surface area of this triangular pyramid?
HELP FAST (will Mark branniest)

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.

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

Solve this and show you’re work step by step ! -5 3/4+3h< 9 1/4 -