Mary Anne Sorensen's airplane crashed on a mountain in the Yukon wilderness. Sorensen weighed 150. pounds at the time of the crash and 110. pounds when she was rescued 50.0 days later. Assuming that death occurs when 50.0% of her body weight is lost, estimate Sorensen's survival time, assuming
a. A constant weight-loss rate.
b. An exponential weight loss-time relation of the form w = woexp(-αt), where α is a constant and wo is her weight at the time of the crash.