Diagonals AC and DB intersect at 0. AC = 6x+4 and BO= 7x-6. What's is DN?

i think its a.

hope this

you can use the sas similarity.

a line dividing two triangle sides proportionally creates a new, smaller triangle whose angle is the same as the large triangle. its two sides are proportional to the large triangle. this implies the small and the large triangle are similar. similar triangles have all three angles the same. this implies the dividing line is parallel to the third side of the original triangle. lmk if you have questions.