Answer: $ 81.09
Explanation:
Given : The equation below, C represents the cost of an item for an employee including tax and x represents the original price of the item :
(1)
The price of the coat before the discount is $100.
Then, the total amount Chris will pay for the coat will be (Put x=100 in (1)) :-

Hence, the amount Chris will pay for the coat = $ 81.09