The bones of a mammal were discovered to have 3% as much Carbon-14 as they would have contained when the mammal was alive. How long ago did the animal live? (Use k = 0.00012)

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads

(0.2)+(-8)=0.3+-3+0.3m is the equation i guess? ?

step-by-step explanation: