65,000,000,000 in scientific notation

Which property is illustrated by the statement given below? raj raj.

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

Write an equation for the function that includes the points (2,100)and (3,100)