Answer:
$450
Step-by-step explanation:
The TV is on sale for 20% off.
The original price is $90 more than the sale price.
Discount on TV = 20% of total.
[tex].2x = 90[/tex]
Divide both sides by .2 to solve for x.
[tex]\frac{0.2x}{.2} = \frac{90}{.2}[/tex]
[tex]x = $450[/tex]
