In ΔEFG, \overline{EG} EG is extended through point G to point H, \text{m}\angle EFG = (2x+1)^{\circ}m∠EFG=(2x+1) ∘ , \text{m}\angle FGH = (6x+2)^{\circ}m∠FGH=(6x+2) ∘ , and \text{m}\angle GEF = (x+19)^{\circ}m∠GEF=(x+19) ∘ . Find \text{m}\angle GEF. m∠GEF.

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.