Answer:

Step-by-step explanation:
By definition, we can write ln instead of log. WHEN??
Whenever the base of the logarithm is the number "e".
Hence, when we have:

We can write it in shortcut as:

Hence, ln x can also be written as 
Fourth answer choice is right.
The two numbers would be -7 and 24.
Answer: 0.32
Step-by-step explanation:
Each edge is 4 feet. To find volume, you do length x width x height. A cube has all equal sides. 4x4x4=64