Answer:
3
Step-by-step explanation:
Answer: 2/6 or 33%
Step-by-step explanation: Hope this helps <3
Answer: a= 120
Step-by-step explanation:A = height times width, 10 times 12 is 120 :)
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 
Answer:
187.5 is what u have left each week after takign away the 25%.
Step-by-step explanation:
Hope this helps? :)