Respuesta :

Answer: C - 35

Step-by-step explanation:

If the ratio is 3:5:2 and red books is 21, I believe the answer is C, 35 as  5 times 7 equals to 35.

Answer:

C (35)

Step-by-step explanation:

21 red

There are only 3 red which means you have to find out how you get 21

Find what numbers go with 3

3x7 is 21

mutiply yellow by 7 and get your answer (5x7)

35

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