$\"\"$

The expression is $\"\"$ .

Solve the equation.

$\"\"$ (Original equation)

$\"\"$ (Divide each side by $\"\"$ )

$\"\"$ (Cancel common terms)

$\"\"$ (Write each side using exponents and base $\"\"$ )

$\"\"$ (Substitute: $\"\"$ )

$\"\"$ (Use calculator: $\"\"$ )

$\"\"$ (Divide each side by $\"\"$ )

$\"\"$ (Cancel common terms)

Round off to the nearest ten-thousandth.

$\"\"$ .

The value of $\"\"$ .

$\"\"$

The value of $\"\"$ .