The product of 18 integers is one, is it possible for their sum to be equal to 0? Why or why not? PLEASE HALP(i luv gramar) ASAP

b) the dogs need to shift their focus to human scent.

12/11c

or

12

c

11

the answer is d

hope this

ending amount = beginning amount / (2^n)

where "n" = number of half-lives (or elapsed time / half-life)

ending amount = 50 mg / (2 ^10 / 5.3)

ending amount = 50 mg / (2 ^ 1.8867924528)

ending amount = 50 m / 3.6981210597

ending amount = 13.5203794557 mg

or about 13.5 mg remain

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