Final answer:
The tangent of angle ZN is 15/8.
Step-by-step explanation:
To find the tangent of angle ZN, we need to find the opposite and adjacent sides of the triangle. OP is the adjacent side and NP is the opposite side. So, the tangent of angle ZN is equal to the ratio of opposite to adjacent, which is NP/OP. In this case, NP is 15 and OP is 8, so the tangent of ZN is 15/8.