T.V on sale for $600 . the sale price is 20 % less than regular price. What was the regular price in dollars? Give answer to nearest one hundredth.

The  sale price  of the TV =
$600.

It  is said the sale price is after a 20% less than the rgular
price.

So the if the regular price  P , then after 20% reduction,
the sale price  is P - P(20/100) = P- P/5 = 4P/5.

Therefore 4P/5 
should be equal to $600 sale price.

So 4P/5 =
$600.

Multiplying both sides of the equation by 5 , we
get:

(4P/5)*5 = $600*5.

4P =
$3000.

Divide both sides by 4:

4P/4 =
$3000/4

P = $750.

Therefore the regular
price of the TV = $750.