Increase 80 in the ratio 3:2

What is the value of x in the diagram below?

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

Solve the triangle. a = 21°, c = 105°, c = 5