Answer:
1
Step-by-step explanation:
15 = 1*3*5
64 = 1*8*8 = 1*2*2*2*2*2*2
15 and 64 have only "1" that presents in both 15 and 64.
So, GCF of 15 and 64 is 1.
B.Stacey spent less time working on her garden than Vicki spent on her garden.
C. Josh worked longer than Vicki worked on her garden.
D. Vicki worked longer on her garden than Stacey & Josh combined.
2a is true and 2b is also true and 2c is false 2d is true
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