Given that Alex plans to dilate ΔLMN using a scale factor of 5/2, this implies that the sides of the ΔL'M'N' have been enlarged by a scale factor of 5/2. The angles will, however remain the same. Therefore, the statement that relates triangle LMN and image triangle L'M'N' is:
L'M'/LM
Answer: J] L'M'/LM