What is the area of this parallelogram?

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.

What is not true about kl and mn? what is mn? (show your work)

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?