Answer: A = 0.85x dollars.
Explanation:
Since we have given that
Total Amount is represented as 'A'.
Cost of furniture = x dollars
Rate of discount = 20%
Amount of discount is given by

So, Amount after discount becomes

Rate of sales tax = 6.25%
Amount of sales tax is given by

So, Amount after sales tax becomes,

Hence, A = 0.85x dollars.