if the sales tax rate is 7.3%, what is the sales tax on a $145.72 purchase?

if the sales tax rate is 7.3%, what is the sales tax on a $145.72 purchase?
Answer
Explanation:
Step1: Convert percentage to decimal
$7.3%=\frac{7.3}{100}=0.073$
Step2: Calculate sales - tax amount
$145.72\times0.073 = 10.63756$
Answer:
$10.64$ (rounded to the nearest cent)