A person's systolic blood pressure, which is measured in millimeters of mercury (mm Hg), depends on a person's age, in years. The equation: P=0.006y20.02y+122 gives a person's blood pressure, PP, at age yy years. A.) Find the systolic pressure, to the nearest tenth of a millimeter, for a person of age 50 years. B.) If a person's systolic pressure is 131.74 mm Hg, what is their age (rounded to the nearest whole year)?