Answer:
60
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
The first answer is correct because we have a decay factor.
The sample is losing mass, so the number that is being multiplied by a power of x must be less than 1.
If the second answer were used, then the sample would be gaining mass.
Simply multiply 0.7 by 100. 0.7 x 100= 70%. The answer is 70%
Answer:
-1/2
Step-by-step explanation:
