Answer:
C. 60%
Step-by-step explanation:
Je + Jo = 500
solve for how many Jordan picks
Je = Jo + 100
Jo + Jo + 100 = 500
2Jo = 400
Jo = 200
solve for how many Jerry picks
Je + 200 + 100
Je = 300
300/500 = 0.60
or 60%
Therefore, Jerry picked up 60% of the 500 pieces of garbage.