A customer went to a shop and paid a total of $30, out of which 90 cents was for sales tax on taxable purchases. If the tax rate was 6%, then what was the cost of the tax free items?	Pick.
A) $12.70  B) $13.20  C) $14.10  D) $15.60  E) $16.80
The total cost was $30.   The tax was $0.90   Let the original price of the taxable items = x   Given that tax rate = 6%   0.06x = 0.90   x = $15   The cost of the tax free items was $30 - $15 - $0.90 = $14.10   The answer is $14.10.30 -  15 -  0.90= 
<gadget id="calculator">30 -  15 -  0.90</gadget>
<output>14.1</output>
$14.10   The answer is $14.10.
<result>C</result>
A customer went to a shop and paid a total of $30, out of which 90 cents was for sales tax on taxable purchases. If the tax rate was 6%, then what was the cost of the tax free items?