Iwant to know the answer of this question

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

Solve this and show you’re work step by step ! -5 3/4+3h< 9 1/4 -

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