Answer:
9%
Step-by-step explanation:
An item cost $500 before tax,and the sales tax is $45. Find the sales tax rate as a percentage.
Represent this tax rate by r. Then r = $45 / $500 = 0.09, which is equivalent to the percentage 9%.
$20 × 14 days = $280
&30 × 3 = $90
&280 + $90 = $370
