Answer:
i believe A and C
Explanation:
Total marbles 18
10 red
5 blue
3 green
Answer is A and D
explanation
ratio of red marbles to blue marbles = red marbels / blue marbels = 10/5 = 2/1
ratio of all marbels to red marbels = all marbels / red marbels = (10+5+3)/10
= 18/10 = 9/5
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