Answer:
• Best Buy
,• Their selling price is lower
Explanation:
The original price of the TV = $380.
BestBuy
If Best buy marked down the TV by 50%
Then the selling price of the TV will be:
[tex]\begin{gathered} =380-\mleft(50\mright.\%\text{ of 380)} \\ =380(1-50\%)=380(1-\frac{50}{100}) \\ =380(1-0.5) \\ =0.5\times380 \\ =\$190 \end{gathered}[/tex]The selling price at BestBuy will be $190.
Walmart
Walmart marked down the TV by 30%
[tex]\begin{gathered} =380-\mleft(30\mright.\%\text{ of 380)} \\ =380(1-30\%) \\ =380(1-0.3) \\ =0.7\times380 \\ =\$266 \end{gathered}[/tex]There was also an additional 20% off.
[tex]\begin{gathered} =266-\mleft(20\mright.\%\text{ of 266)} \\ =266(1-20\%) \\ =266(1-0.2) \\ =0.8\times266 \\ =\$212.80 \end{gathered}[/tex]The selling price at Walmart is $212.80
Therefore, Luigi should buy from BestBuy since they have a lower selling price of $190.