Answer
The cost of the television is 3600 dollars.
Work Step by Step
Because the television is on sale for 25% off, costumers will have to pay 100% - 25% = 75% of the original price to buy it.
The original price was 4800 dollars, so:
75% $\times$ 4800 =
0.75 $\times$ 4800 =
3600
The cost of the television is 3600 dollars.