What is the exact solution for the equation

Option C is correct.

Exact solution of   is,

Step-by-step explanation:

Given the equation:

Using logarithmic rules:

Given:

Taking logarithmic both sides:

By logarithmic rules;

Using distributive property i.e

Subtract from both sides we get;

Simplify:

or

Divide both sides by we get;

Therefore, the exact solution of the given equation is

a mantle plume is an upwelling of abnormally hot rock within the earth's mantle. as the heads of mantle plumes can partly melt when they reach shallow depths, they are thought to be the cause of volcanic centers known as hotspots and probably also to have caused flood basalts.

step-by-step explanation:

96 cm is the answer.