Tommy's Tool Shop currently owes money to 4 different companies, as shown below. Company
A
B
С
D
Account Balance
-$56.89
-$48.97
-$305.21
-2.06
List the companies in order from the company Tommy's Tool Shop owes the greatest amount
to the company Tommy's Tool Shop owes the least amount.
Example w, x, y, z* S.
(20 Points)
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The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?