Question 3.3. find the lcd of these fractions.

4/x^2y, 20/xy

(points : 1)

a. xy
b. xy^2
c. x^2y
d. x^2y^2

? : )

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