Change of Base Logs

Which property of logarithms is demonstrated below:
 $$\log_920\ =\ \frac{\log20}{\log9}$$

Use the change of base rule to simplify.  Round your answer to the nearest thousandth:

Use the change of base property to rewrite as a single logarithm: \frac{\log15}{\log3}

Write log_b(x/y) as two logs

Use the change of base rule to rewrite this problem:

log₃64

Use the change of base rule to rewrite this problem:

log₆216

What would the change base look like for:
  log₆ 48

Approximate its value to the nearest ten-thousandths using change of base formula. log₃7

Use the change of base formula to evaluate the logarithm.

(Round your answer to four decimal places)

$$\log_635$$

Evaluate log_b(b)