There is a sales tax of $6 on an item that costs $88 before tax. The sales tax on a second item is $21. How much does the second item cost

Let's assume the cost of the second item is x.

From the information given, we know that the first item costs $88 before tax, and there is a sales tax of $6 on it.

So, the total cost of the first item after tax is $88 + $6 = $94.

We also know that the sales tax on the second item is $21.

So, the total cost of the second item after tax is x + $21.

But we know that the total cost of the second item after tax should equal the cost of the first item after tax, which is $94.

Therefore, we can set up the equation: x + $21 = $94.

Subtracting $21 from both sides, we get:

x = $94 - $21 = $73.

Therefore, the second item costs $73.