The concentration c (in mg/dl), of an antibiotic in a patient’s bloodstream per hour, t, is given by: c(t) = (55t)/(t^2+25) in order for the antibiotic to be effective, 5 or more mg/dl must be present in the bloodstream. when do you have to take the antibiotic after the initial dose? solve algebraically and graphically.

Luke started a weight-loss program. the first week, he lost x pounds. the second week, he lost pounds less than times the pounds he lost the first week. the third week, he lost 1 pound more than of the pounds he lost the first week. liam started a weight-loss program when luke did. the first week, he lost 1 pound less than times the pounds luke lost the first week. the second week, he lost 4 pounds less than times the pounds luke lost the first week. the third week, he lost pound more than times the pounds luke lost the first week.