Question
Fiona places 4 stools an equal distance from one another. The distance between the 1st stool and the 4th stool is 129 cm. If Fiona adds 7 more stools that are equal distance apart, what would be the distance between the 1st stool and the 11th stool?
4 m

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Fiona places 4 stools an equal distance from one another. The distance between the 1st stool and the 4th stool is 129 cm. If Fiona adds 7 more stools that are equal distance apart, what would be the distance between the 1st stool and the 11th stool?