Answer:
4% Sales Tax
Step-by-step explanation:
$14 is the original total and the total including tax is $14.56 meaning the tax is $.56
$.56 fits int o $14 25 times 14/.56=25
100%=$14 $.56=100%/25=4%
Meaning the Sales tax is 4%
18 dollars
$1.50*8=$12
$30-$12=$18