Solution: The correct option is option (B) 1.08(0.87y).
Explanation:
It is given that the original cost of cards is y. It is also given that cards was on sale of 13% and the tax in the country is 8%.
There is a sale of 13% it means the prices are 13% less.
13% of y =
The price of cards after discount is
The price after discount is 0.87y.
It is given that the tax in the country is 8%.
The amount of tax on the cards is calculated as shown below,
The price after discount is is calculated as shown below,
Therefore, the correct option is option (B) 1.08(0.87y).