it doesn't represent a proportional relationship because it doesn't cross the origin, instead it has a y-int of (0,5)
hello, there is a new name in town and that's the human spider!
answer: d.) the total number of protons and neutrons is 15
your friendly neighborhood human spider! .
e^-kt = n/n0 = 0.79
-kt = ln 0.79
t = - ln 0.79/0.0001
= 2357 years