*** I NEED HELP PLEASE HELP YOUR GIRL OUT LOL** Identify the segment parallel to the given segment

Find the difference (8ab+a+2) - (3ab+6)

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

Landon wrote that 3−2.6=4. which statement about his answer is true?