Explain why a function has at most one y-intercept

Acar travels at an average speed of 52 miles per hour. how long does it take to travel 299 miles

Which statement about the annual percentage rate (apr) is not true?

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?