Seudónimo Seudónimo
  • 09-12-2020
  • Mathematics
contestada

help please I give brainliest

help please I give brainliest class=

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Аноним Аноним
  • 09-12-2020

Answer: 4.5

Step-by-step explanation:

90 = 20r

90/20 = 20/20r

r = 4.5

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