Iliana’s math grade increased from 65 to 86. fiona’s math grade increased from 70 to 80. what is the difference, rounded to the nearest whole number, between the approximate percent increases? me plz

What can you determine about the solutions of this system

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

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