Respuesta :
[tex]\begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{7.5\% of 12.40}}{\left( \cfrac{7.5}{100} \right)12.40}\implies 0.93[/tex]
Answer:
$0.93
Step-by-step explanation:
1) Turn 7.5% into a decimal which is 0.075
2) Multiply :
0.075 * 12.40 = $0.93 tax on the purchase
Second Part if you need to add :
1) Add :
$12.40 + 0.93 = $13.33