Sabiendo que la constante de proporcionalidad es 5 Cuánto valen los 3 lados del triángulo 1 a) 30m, 25m y 15m b) 60m, 30m y 20m c) 11m, 10m 7 8m

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?