Write a program that takes user inputs so that the output is price. Male customer: Female Customer: Boys (age ≤ 13): $10 Girls (age ≤ 13): $12 Men (age > 13): $15 Women (age > 13): $25 Based on the information the user enters, the output should be a total cost only.

Athin walled concentric tube exchanger is used to cool engine oil from 160°c to 60°c with water that is available at 25°c acting as a coolant. the oil and water flow rates are each at 2 kg/s, and the diameter of the inner tube is 0.5 m and the corresponding value of the overall heat transfer coefficient is 250 w/m2. oc. how long must the heat exchanger be to accomplish the desired cooling? cpwater=4.187 kj/kg-candcpengine el=2.035 kj/kg·°c, oil . 120]