Pls me asap for 4, 5, 6, and 7! (show ) + lots of points!

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

Evan went to the park and saw for animals each animal was either a duck or dog if he saw a total of 14 legs how many of each animal did he see

Zack and tia played chess for 50 min they put the chessboard away at 11: 20 when did they start