Sebastian has another account at the bank that pays 2 ½ % simple interest. How much interest will he earn in 8 years on an initial deposit of $250 assuming he does not add or withdraw from the account.

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