(-5n4 + 8) + (5n4 + 8n3 + 3n²)

Which is equivalent to 10/12? options: 10/18 5/6 3/12 9/11

Pls me this is due today and i need i will make brainliest if you me answer correctly and i will report if you try to give me a dumb answer.

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