Any1 know the answer to this need help ASAP

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days

Charlie tosses five coins.what is the probability that all five coins will land tails up.

Consider the first four terms of the sequence below. what is the 8th term of this sequence?