The average person's stride length, the distance covered by one step, is approximately 2.5 feet long. how many steps would it take to travel 50 feet?

the answer is 8/21

hope this

i think the answer would be c

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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6 cars because if you have 8 and subtract 2 youll have 6 left over