Which expression is equivalent to 2(3 – x) – 12 + 4x?

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

It says factor each expression completely 8y+48

The difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.