Angles on a Cartesian plane

Lines p and q intersect. find the value of b. show your work. cite any theorems you use.

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

Twelve less than a number is at most 20