Answer:
78 percent
Step-by-step explanation:
percent increase = (64-36)/36 ×100
= 28/36 ×100 = 0.78×100= 78
The question is incomplete, here is the complete question:
Recall that m(t) = m.(1/2)^t/h for radioactive decay, where h is the half-life. Suppose that a 500 g sample of phosphorus-32 decays to 356 g over 7 days. Calculate the half life of the sample.
<u>Answer:</u> The half life of the sample of phosphorus-32 is 
<u>Step-by-step explanation:</u>
The equation used to calculate the half life of the sample is given as:

where,
m(t) = amount of sample after time 't' = 356 g
= initial amount of the sample = 500 g
t = time period = 7 days
h = half life of the sample = ?
Putting values in above equation, we get:

Hence, the half life of the sample of phosphorus-32 is 
Answer: Stella has a reasonable Answer
Step-by-step explanation:
When you add up all of the Costs, you get an answer of $20.80
You Divide $20.80 by 3
And you get your answer of 6.93333
Which estimates around 7 dollars making Stella Right!
Hope this helps :)
Answer:
280x
Step-by-step explanation:
I hope this helps!
-65/-13 is 5.
Hope it helped.