The Sony 55 inch flat screen T.V. was 45% off at best buy. If the T.V. originally coast $1350.00, How much was the discounted price? Discounted = Sales Price.

To find the discounted price, we need to multiply the original price by the discount percentage (45%) and subtract that from the original price:

Discounted price = $1350.00 - ($1350.00 * 0.45)
Discounted price = $1350.00 - $607.50
Discounted price = $742.50

Therefore, the discounted price of the Sony 55 inch flat screen T.V. was $742.50.