Answer:
Eric practiced the piano for 2 hours this week
Explanation:
If it tells us that Eric spent 1/4 of the time playing the piano and all the time he practice this week was 8 hours, then we have to multiply the 8 hours by 1/4
p = time he practice piano
p = 8h * 1/4
p = 2h
Eric practiced the piano for 2 hours this week