We are given retail price of the new television as $679.
There is 40% off on the regular retail price .
So let us find the price after 40 % off.
New price after discount = 40% of retail price= 40% of 679
40% of 679 = 0.4 *679 = $271.6
So price of television after discount is $271.6
Now there is 7% sales tax to be included in this.
So first we find 7% of 271.6 which is 19.012.
Final price = New price + 7% sales tax price
Final price of television = $271.6 + $19.012 = $290.612
Answer: Final cost of television is 290.61 dollars. First option is the correct choice.