How to express 24.357 in unit form

Find the given elements if matrix d:

Find the solution of system of equation y= x-4 y=4x+2

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