What is the sum of the first 8 terms of the geometric series: 3+6+12+24+ 0765 382 286 440

What are the measures of angles a, b, and c? show your work and explain your answers. 25 points

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

Ineed ! what is the connection between ratios, fractions, and percents? give an example with your answer.