Stefan sells jin a bicycle for 127 and a helmet for 17 the total cost for jin is 120% of what stefan spent originally to buy the bike and helmet. how much did stefan spend orginally? how much money did he make by selling the bicycle and helmet to jin

Situation: . find the substance's half-life, in days. round your answer to the nearest tenth. a 11 gram sample of a substance that's used to treat thyroid disorders has a k. value of 0.1247. enter the correct answer n - noekt done no - initial mass (at time t = 0) n - mass at timet k a positive constant that depends on the substance itself and on the units used to measure time t= time, in days