11+10=?????????????????????
I think it can be 605. I'm not sure exactly, but I think it is.
Answer:
7-21
Step-by-step explanation:
if -a+b
is thesame according to laws of integers as
b-a
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 
312* 17.5= 5460.00
134*19=2546
2546+5460= $8,006.00