ANSWER:
$638.66
STEP-BY-STEP EXPLANATION:
The first thing is to determine the discount value, as follows:
[tex]\begin{gathered} d=721-14\%(721) \\ \\ d=\:721-\frac{14}{100}\left(721\right)\: \\ \\ d=721-100.94 \\ \\ d=\text{ \$}620.06 \end{gathered}[/tex]Now we apply the sales tax, like this:
[tex]\begin{gathered} t=620.06+3\%(620.06) \\ \\ t=620.06+18.60 \\ \\ t=\text{ \$}638.66 \end{gathered}[/tex]So the total cost of the tablet computer is $638.66
