When i click see the answer it wont let me whyyy i need help asap

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²

Which of these is and example of a literal equation? a) 6+30=6^2 b)3x-4y c)12=9+3x d)ax-by=k

Jermaine has t subway tokens. karen has 4 more subway tokens than jermaine. raul has 5 fewer subway tokens than jermaine. which expression represents the ratio of karen's tokens to raul's tokens