Jerome is building a rectangular picture frame for his most recent painting. The length of the the picture frame is 2.5 times the width.
The width of the frame is x + 3. If the perimeter of the picture frame is
210 inches, what is the length of the frame?

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