Finding missing side length? pls ty

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

How do you convert 1.27 to a percentage

The sum of these consecutive integers is equal to 9 less than 4 times the least of the integer. find the three integers