Can someone just answer this asap for !

D

Step-by-step explanation:

b + 2 is a factor of b² - 4 (Shamsul is saying it backwards so he is wrong)

b² - 4 is divisible by b + 2 (Asma is saying it backwards so she is wrong)

Well they are fractions, you want to add them and see what is left. If you would add them together you have to have the same denominator. It already is saying 20. Something over something is dividing it by the second number, also known as a fraction. 9/20 + 6/20 / 15/20. Now 20/20 = 1. You want to find green which is 5/20. So the answer is D. 5 over 20.