No.
(a) 3 = e-2k: This means that N increases by 200% (1 to 3) with negative k.
(b) ln(1/3) = -2k: This means that N decreases by a factor 200% (1 to 3) in 2 days.
(d) ln(3/2) = -3k: This means that N increases by 33 1/3% (2 to 3) in 3 days and k is negative.
(e) ln(1/3) = -3k: This means N decreases by 200% (1 to 3) in 3 days.

Proceed