Answer:
$1710.00
Explanation:
The total bill was ...
(after-tax total) = (pre-tax subtotal) + 6.1% · (pre-tax subtotal)
(after-tax total) = (pre-tax subtotal) · 1.061
Divide by the coefficient on the right to find the value of the variable on the right.
(pre-tax subtotal) = (after-tax total)/1.061 = $1814.31/1.061 = $1710.00
The pre-tax subtotal was $1710.00.