To summarize the situation:
- March: Jasmine ran \( m \) miles.
- April: Jasmine ran \( m + 7 \) miles.
- May: Jasmine ran \( 78 \) miles, which is \( 150% \) of the distance she ran in April.
Now, the relationship between the distances can be expressed as follows:
150% of April's distance = May's distance
So the correct answer is:
150% of April's distance = May's distance.