Let f(x) = x3 + 3 and g(x) = x2 − 8. Find the rule for the function. f − g

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