Which system of equations is equivalent to the following system? 4x + y = 4
2x + 7y = 28

A: 4x + y = 4
−2x − 7y = 28

B: 4x + y = 4
−8x − 28y = 112

C: −28x − 7y = −28
2x + 7y = 28

D: −8x − 2y = 8
2x + 7y = 28

Circle d circumscribes abc and abe. which statements about the triangles are true? statement i: the perpendicular bisectors of abc intersect at the same point as those of abe. statement ii: the distance from c to d is the same as the distance from d to e. statement iii: bisects cde. statement iv: the angle bisectors of abc intersect at the same point as those of abe. a. i only b. i and ii c. ii and iv d. i and iii e. iii and iv