Here I did all I can do rn
By taking the product of the two fractions we will see that the number that goes in the green box is a 6.
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How to add two fractions?</h3>
We only can add two fractions if we have the same denominator in both of them, here we want to transform -2/3 in an equivalent fraction, such that the denominator is 9, so we multiply both the numerator and denominator by 3.
So we need to solve:

From that, we can conclude that the number that goes in the green box is 6.
If you want to learn more about fractions, you can read:
brainly.com/question/11562149
The correct answer is Choice B because each of these events are separate items. Each of the others choices will have a part of the additional events that are affected by the first event. When the first event happens in each of these options, the second event's probability is affected by the first outcome. The number of total outcomes changes because of the first event in all choices, except for choice B.
21 is going to be your answer
7(y+2)=3
seven times the sum of a number (y) and 2
means y+2 multiplying by 7