Multi digit whole number and decimal fraction operations

How many real and imaginary solutions does the equation x^2-3x=-2x-7 have?

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

1/2+1/6-3/4 simplify the given expression leaving the answer in improper fraction form.