### Home > PC3 > Chapter 5 > Lesson 5.1.2 > Problem5-25

5-25.

In a previous CPM course you may have seen the ancient puzzle mathematicians first created in India in the second century BCE. Below are some clues to help you figure out how the puzzle works. Use the clues in the puzzle to evaluate each logarithmic expression below.   Homework Help ✎

 $\log_2(16)=4$ $\log_9(81)=2$ $\log_5(25)=2$ $\log(1000)=3$

If $\log_2(16)=4$, then $2^4=16$.

1. $\log_3(81)$

$3^?=81$

1. $\log_4(64)$

1. $\log_6\left(\frac{1}{36}\right)$

1. $\log(100)$