Step-by-step explanation:
-5/8 + 3/4
= -5/8 + 6/8
=1/8
120 the formula for interior angles of a shape is ((n-2)180)n
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:
c
Step-by-step explanation: