You’re answer should be A. 3
I believe it coukd be utself or abother answer by itself times x
M<J = m<N ( alternate angles)
m<K = m<M ( alternate angles)
so the third angles must also be equal ( total 180 degrees in each triangle)
Therefor the triangles are similar
20+35+30= 1 hr&25 min so she should leave at 5:20