The degree of a polynomial is the highest number as an exponent in a term, for example, 5x^3+5x^2, 3 is the degree. To find it, you need to either just find the highest number or add up multiple degrees in one term. An example of this is 5x^3y^3+4x^3y^2. Since 3+3=6 and 3+2=5, the first term has the highest degree.
Answer:
probability=events over the sample space
Can you go deeper into the question?
2x + 1
You can find that by switching the signs in the second set of parenthesis and then adding.
Well the answer for the square root of 11
irrational number
and real number