Renee took a 400 mg dose of antibiotics. Her doctor said that the amount of medicine in her bloodstream would change by −26% every 4 hours. Select the formula for the function f that models the amount of medicine in Renee's bloodstream (in mg) in terms of the number of hours, t, since she took the dose.   f(t)=400⋅0.744t f(t)=400⋅0.74t4 f(t)=400⋅0.74t f(t)=400⋅0.26t4 f(t)=400⋅0.264t

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