Agirl scout troop with 10 girl scouts and 2 leaders goes on a hike. when the path narrows, they must walk in single file with a leader at the front and a leader at the back. how many ways are there for the entire troop (including the scouts and the leaders) to line up?

Assume the existence of a bankaccount class. define a derived class, savingsaccount that contains two instance variables: the first a double, named interestrate, and the second an integer named interesttype. the value of the interesttype variable can be 1 for simple interest and 2 for compound interest. there is also a constructor that accepts two parameters: a double that is used to initialize the interestrate variable, and a string that you may assume will contain either "simple", or "compound", and which should be used to initialize the interesttype variable appropriately. there should also be a pair of functions getinterestrate and getinteresttype that return the values of the corresponding data members (as double and int respectively).

Donna and her team of five have invented a new gadget for the science exhibition in their college. which intellectual property right will protect their invention?

Based on your knowledge of a good network, describe what you think is a perfect network would be. what kind of information and resources could users share on this network. what would the network administrator do? what kind of communication would be used?