<u>Answer:</u>
t = 6.3 days
<u>Step-by-step explanation:</u>
The amount of initial mass is irrelevant when finding the half-life since the remaining mass is always 1/2 of the initial mass.
Taking 
on both the sides to get:
t = 6.3 days
The answer is 3.5
steps
7 divided by 2
7 go in to 2 3 times which equals 6
then put a decimal then put a 0 then 2 go in to 10 5 times
then the answer is 3.5
You divide the percent by 100 then you would get a fraction
If you take the total, and multiply it by the sales tax (.08) then you will get $17.28
(216x.08)
Answer:
3. solid , liquid
4. respiratory
I only know these two answers and I'm not sure if it's right
