8 is the answer because you count up from the lower number
My answer is use a map app like Photomath
50% because when you take out the first marble witch is probably blue since there are more blue you would have 2 blue and 2 green so the chance would be 50%

Solution:
Given expression:

<u>Expansion of PEDMAS:
</u>
Parenthesis, Exponents, Division, Multiplication, Addition, Subtraction.
To solve the given expression using pedmas rule.
First solve the expression with parenthesis.

Next do the exponents.

Finally do the addition.

Hence the answer is 80.