Respuesta :

abrianacolon
15 yards i did this one before.
darkpinkwolf
Answer:

15 yards

Explanation:

1 balloon =2.5 feet of ribbon.
18 balloons =(2.5⋅18) feet of ribbon
18 balloon =45 feet of ribbon.

3 feet = 1 yard.
45 feet = 453=15 yard

Therefore,
18 balloons need 15 yards of ribbon.

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