What is the sales tax on $8.50 purchase of the sales-tax rate is 6 1/2%?

0.55

Step-by-step explanation:

First, convert 6 1/2% to a decimal

6.5/100=0.065

Multiply 8.50 by the 0.065

8.50*0.065=0.5525

Since we are dealing with money, we should round to the nearest cent/hundreth

0.5525=0.55

So, the sales tax will be 0.55

Hope this helps!