A bird flies south. Its distance from its nest, as a function of time, is modeled by y = 20x + 1. Which statement best describes the function? A. Not enough information is given to decide. B. The function is linear at some points and nonlinear at other points. C. The function is linear. D. The function is nonlinear. SUBMIT​

The weekly amount spent by a company for travel has an approximately normal distribution with mean = $550 and standard deviation = $40. a) what is the probability that the actual weekly expense will exceed $570 for more than 20 weeks during the next year? (note: one year = 52 weeks) b) what is the probability that actual weekly expenses exceed $580 for 10 or more, but 16 or fewer weeks during the next year?