Astore is having a sale on walnuts and chocolate chips. for 2 pounds of walnuts and 5 pounds of chocolate chips, the total cost is 10.00. for 8 pounds of walnuts and 3 pounds of chocolate chips, the total cost is 23.00. find the cost for each pound of walnuts and each pound of chocolat chips

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?