What is the probability of rolling a 1 on a regular six sided die?

Aclass consists of 55% boys and 45% girls. it is observed that 25% of the class are boys and scored an a on the test, and 35% of the class are girls and scored an a on the test. if a student is chosen at random and is found to be a girl, the probability that the student scored an ais

10% of 1,900,000. show me how you got the answer

Hi i’m not sure how to do question 20 if u could explain how to do it that’d b great