Bobbie has 18 * 3 = <<18*3=54>>54 crayons.

Lizzie has 54 / 2 = <<54/2=27>>27 crayons.

# Answer

27
Question:
Lizzie has half as many crayons as Bobbie. Bobbie has three times as many crayons as Billie. If Billie has 18 crayons, how many crayons does Lizzie have?
Answer:
Let's think step by step.

user
27
Lizzie has half as many crayons as Bobbie. Bobbie has three times as many crayons as Billie. If Billie has 18 crayons, how many crayons does Lizzie have?
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