Astore gave a customer an allowance of $10.50 on a dress that originally sold for $285.99. how much did the customer pay for the dress if the sales tax was 6.5%?

$ 293.40

Step-by-step explanation:

Given,

The allowance given by the store = $ 10.50,

The original cost of the dress = $ 285.99,

So, the cost of the dress after allowance = 285.99 - 10.50

= $ 275.49,

Now, the sales tax = 6.5 %,

Hence, the final amount of the dress after tax = (100+6.5)% of 275.49

= 106.5% of 275.49

= $ 293.39685

≈ $ 293.40