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lidiya [134]
4 years ago
11

Answer this and you’ll get brainlest

Mathematics
1 answer:
Misha Larkins [42]4 years ago
7 0

Answer:

D 18

Step-by-step explanation:

Let r = red pens

b =5r

g = 3r

The total number of pens

r+b+g

Substitute

r + 5r+ 3r

Combine like terms

9r

The number of pens must be a multiple of 9

18 is a multiple of 9

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