The whole number that comes before 105 is 104.
However, it is not the only whole number that comes before 105.
Whole numbers are identified as natural number and zero (0). Meaning the whole number starts with 0 then followed by 1,2,3,4.... so on. Whole numbers are positive numbers without remainders nor fractions.
Whole number that come before 105 range from 0 to 104.
Natural numbers are also called counting numbers; They start with 1. Zero is not a natural number because it cannot be counted.
Integers are numbers which can be positive or negative and it includes zero.
Answer:
the third option is the correct
And what happened?
you didn’t finish your sentence, lol
Answer:

Step-by-step explanation:

Solve 

Hello!
Answer: 
Step-by-step explanation:

Multiply by 3 from both sides of the equation.

Refine.

Add by 2 from both sides of the equation.

Simplify.

Divide by 21 from both sides of the equation.

Simplify.

Hope this helps!
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-Charlie