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John took 600mg of a medicine. Each hour, the amount of medicine in his body decreases by about 25%. Which function represents the amount of medicine in johns body after x hours

A.f(x)=600(0.75)^x

B.f(x)=600-25x

C.f(x)=600(0.25)^x

D.f(x)=600-75x

1 Answer

2 votes
The answer is A
Initially 600
Decrease so 1-.25=.75
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