If 14 g of a radioactive substance are present initially and 3 yr later only 7 g​ remain, how much of the substance will be present after 6 ​yr?

Respuesta :

It would be 48 bc if you add it all up and subtract it and add again and multiply and divide and multiply within a and the substance of present after 6 yr you will see that i have wasted your time and that is not the answer