In Raptor, calculate the total grocery bill, including the 13% sales tax, to be paid for items in your grocery cart. Due to a promotion campaign, the store does not charge sales tax on the most expensive grocery item in any given customer grocery cart. If there are more than one most expensive item in the grocery cart, the sales tax will not be charged for only one item. The grocery item prices are stored in a file calledgrprices.txt, content ofgrprices.txt:

74.5

74.2

34

56

72

for the example content ofgrprices.txt, given above, the total grocery bill will be $341.40. The flow needs to be able to read from these costs from .txt file that is created. Try using a redirect input to select the text file in the flow.