Write the equivalent expression to (5x - 3x^2) - (5x - 2) * (10x+ 7x^2) in standered form

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

Can someone me and plz do the problem

Which of the following expressions cannot be simplified to x – 2?