Answer: $13.50 sales tax is charged for $300 because;
Step-by-step explanation:
If you were to do this the easy way you would do,
200 divided by 2 = 100 so;
9 divided by 2 = 4.5
and then since 100 is a ratio in a way they you can do
4.5 times 3 which equals 13.5
:D <3