Its been a while since I have done geometry but I think it's pretty obvious that it's ABC > DBC
A rational number is any number that can be turned into a fraction....it can be negative or positive.
Therefore, -12/6 is a rational number
22.31 because A= BH where B is base length and H is Height. Multiply 5.25 by 4.25 and you get 22.31
Marco is 10 times greater than salima