Abag contains 14 green, 12 orange, and 19 purple tennis ball, create a probability model for choosing a tennis ball from the bag

There are 12 boy and13 girls in a class. if the teacher randomly chooses a student’s name out of a hat what is the probability it will be a girl

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

What’s -11-33k and factor each expression completely