Help me pls help me pls

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

The variable in a relation who’s value depends on the value of the independent variable is called what?

Hi, can anyone show me how to do this problem? 100 points for this. in advance