Sales tax is:
$178.90* (5.75/100)=$10.29
The sales tax of the chair is $10.29~
Given 
To write in logarithmic form we convert exponential form to logarithmic form
We apply the following rule
can be written as 
here b = 6 , x=4 and a = 1296
can be written as 
option A is correct
The answer would be 4.301