What is the answer ?

Which expression gives you the distance between the points (5,1)and(9,-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

Select the graph of the solution. click until the correct graph appears. |x| = 3