The total cost of the television is equal to its price plus sales tax:
total cost = price + sales tax
Now 6.5% of $120 is
![120*(6.5)/(100)](https://img.qammunity.org/2023/formulas/mathematics/college/jn23vad2od57bk5ky3x7jiyldos57o2tit.png)
![7.8](https://img.qammunity.org/2023/formulas/mathematics/college/ary9sbpd26knu5runq5britq3zh0ihn58m.png)
Therefore, the sales tax is $7.8 and hence the total cost is
total cost = $120 + $7.8 = $127.8
total cost = $127.8
which is our answer!