User: Find the GCF. 12 and 45
A. 12
B. 180
C. 45
D. 3

Weegy: The GCF of 12 and 45 is 3.

User: Crystal wants to put a fence around her vegetable garden. Her garden is 5 ft wide and 4 ft long. She plans to put a post at each corner and at every foot. How many fence posts will Crystal need?
A. 14 posts
B. 19 posts
C. 20 posts
D. 18 posts

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