is a hard-working college freshman. One Thursday, she decides to work nonstop until she has answered 100 practice problems for...

is a hard-working college freshman. One Thursday, she decides to work nonstop until she has answered 100 practice problems for her economics course. She starts work at 8:00 AM and uses a table to keep track of her progress throughout the day. She notices that as she gets tired, it takes her longer to solve each problem.