Respuesta :

$10
Since it is five for $1 the amount of rings is 5x the amount of $
sqdancefan

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Answer:

  $10

Step-by-step explanation:

Price is proportional to the number of rings, so Zack will spend D dollars, where ...

  dollars/rings = D/50 = 1/5

  D = 50/5 = 10

Zack will spend $10 to buy 50 toy rings.