It is a complex preposition.
In my life for the first time [and,] the image made me believe [of] my mother that I could change [were] the way things *were*.
remove and & of because it makes no sense in the context of the sentence and move were to the end of the sentence.
Answer:
1. Estuary is to river as mantle is to Earth.
2. Plains is to landform as chocolate is to candy.
3. Florida is to peninsula as Hawaii is to islands.
Explanation: