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.
Answer:
I Think Its C
Sorry if its wrong. Hope it helps...
Okay so for this all you have to do is add 1 to 1/3.
However, to do this you first need to convert 1 into a fraction.
1 = 3/3
3/3 + 1/3 = 4/3
Hope this helps :)
Some expressions are:
7 times 4 equals 28
20 plus 8 equals 28
10 plus 18 equals 28
25 plus 3 equals 28
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