Which statement is true about the circumference of a circle?

Which conjunction is disjunction is equivalent to the given absolute value inequality? |x+2|< 18

Icould really use some with this question.

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