Answer:
Becky spend 1.25 hours in piano practicing.
Explanation:
Let us assume that Becky spends x hours in practicing piano.
If she spent
of her piano practice time on her recital piece.
Then she spent
hours on her recital piece.
So, she spent
hours on other pieces.
Now, given that
⇒ x = 75 minutes = 1.25 hours
Therefore, Becky spend 1.25 hours in piano practicing. (Answer)