C OF Which equations are equivalent to } + 12 – x1 = 15 ? Check all that apply.
0 212-21 =
0 112 - x = 1
12 - x = 10
OL-=
12 - x1 =
Intro

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