In a certain class, 15% of the class failed a math test completely, 25% students made one mistake each, and 24 students got a perfect score. how many students are in this class?

Suppose i flip two identical coins. what is the probability that i get one head and one tail?

Simplify using positive exponents only.

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