Question

Shalika bought a purse for $120. The tax rate is 9%.

What is the total amount Shalika paid?

Answer 1

9% of $120 is $10.8. All you need to do is add $10.8 to $120, the answer being $130.8.

Answer 2

100%= 120
1%= 120/100= 1.2
9%= 1.2 x 9= 10.8
So you just 10.80 to the 120 to get $130.80