Respuesta :

$120 + 9%


$120 + 10.8 =


= 130.8

so she paid $130.8 dollars
100%= 120
1%= 120/100= 1.2
9%= 1.2 x 9= 10.8

Add 10.8 to 120, which gets us to 130.80.

Answer: $130.80

Hopefully this has helped! :)