Answer:
work is shown and pictured
Answer: I think 4500.
Step-by-step explanation: Since the doubling time is 10 years, which means another 2500 is added. So all we have to do is add 2500*(8/10) plus the original 2500, and here ya go!
I think its two i'm sorry i took so long to answer <span />
Answer: Associative
Associative says it doesn't matter what is added or multiplied first, and this question shows this
Hope this helps!