Im not smart im not that sure of my answer but 23.3
20% of 200 is 40, so H is the correct answers the proportion can be written as 40:200
The solution is in the picture
X= sales tax %
Step 1:
$240 * sales tax %= $12
240 * x= 12
240x=12
Divide both sides by 240
x= 0.05 (decimal of the %)
Convert to %:
Multiply decimal by 100 (or move decimal to the right two decimal places
=0.05 x 100
=5 %
The sales tax is 5%.
Hope this helps! :)