A $78.00 pair of shoes cost $84.63 after tax is added. What is the tax rate?

the tax rate is by 8%

Step-by-step explanation:

the reason that is the answer is because you must subtract 78 by 84.63 to get 6.63 then you divide 78 from 6.63 to get 0.085 then you multiply that by 100 to get your percentage which is 8.5% or 8%

It is 8.5% percent tax rate because 8% is to low and 9 is too high and 78 + 8.5% = 84.63