A radioactive substance has a half-life of one month, which means that at the end of each month, the level of radioactivity is h
alf the level that it was at the beginning of the month The substance was discovered in the soil near a high school football field. The table shows the relationship between the radioactivity level found in the soil, r(t)and the number of months since discovery, 2.
2
10
5
25
125
4
Which statement correctly interprets the initial value?