Which expression is equivalent to 1+2(x - 1)?
O
A. 2x – 1
B. 23
c. 3x - 3
O D. 3x – 1

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