Answer: 
Step-by-step explanation:
We know that the general form of the exponential decay formula is
, where y is final amount remaining after t time, A is the original amount and r is the rate of decay
Now, the ratio of strontium-90 remaining, p , as a function of years, t , since the nuclear accident. 
Hence, the ratio of remaining since the nuclear accident is
12 divides by 3 is equal to 4
(4.5,6) that is what i got.
They are all cold, they're below freezing in both C and F, they're impossible temperatures in K, and from a math standpoint they have a mean of approximately 2.7 ish, the median is -2, the mode is nonexistent, you don't have enough data points to do quartiles, the max is -1 and the min is -5. I hope this helpful
