Please help write an inequality to represent the question number 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

Pranza plotted point a in the coordinate plane below.

What is x3+3x2−16x−48 divided by x−1?