Suppose Katy borrowed some amount of money for 38 weeks and Anastasia borrowed the same amount. Katy's loan used the simple interest model with an annual rate of 9.3% while Anastasia's loan used the simple discount model with an annual discount of 9.7%. At the end of their respective terms, Katy's maturity value was $5,810 while Anastasia's was $6,081. How many weeks was Anastasia's loan for ?

Anew obstacle course is home to several new types of challenging obstacles. one such obstacle is traversing a 15-stair staircase. to make it more challenging, the stairs are not uniformly spaced. rather, the vertical space between consecutive stairs for the first 10 stairs is 113 feet and the vertical space for the last 5 stairs is 134 feet. what is the total vertical distance traveled ascending and descending the entire 15-stair staircase?