The correct answer is 0.1958.
Explanation:
We will use a logarithmic equation to solve this.
The base of the exponent, 12, will be the base of the logarithm; the answer, 7, will be what we find the logarithm of.
This gives us the equation
[tex]\log_{12}7=4x[/tex]
Finding log base 12 of 7 gives us
0.7831=4x.
Divide both sides by 4:
0.7831/4 = 4x/4
0.1958 = x.
