Answer:
Alex is right so the problem is solved
For this case, we have by definition, that an irrational number is a number that can not be expressed as a fraction
, where a and b are integers and b is nonzero.
Some examples are:

So, that the answer is 
Answer:
Option C
Answer:
forest, tundra, and grasslands
Answer:
-10
Step-by-step explanation:
minus 5 in each number
Answer:
The first one is the answer