Someone please help me​

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 equation - 2(m -30) = -6m a-15 b-13 c-8 d8

Ab based on the given diagram, if m_1 = 60° then m 2 = 30 60 90 180