Sam owes the bank a little less than $40$40. which choice could be his balance? a. $40.25 b. -$40.25 c. -$39.25 d. $39.25 explain answer : ) 

Select the correct answer from each drop-down menu. a parabola is given by the equation y = x2 − 2x − 3. the directrix of the parabola is given by the equation . the focus of the parabola is .