Ummm... I haven't done #1 yet, but I have some questions on #2...
In #2 part B, I'm getting an irrational answer. How many decimal places do you want the answer accurate to? (Or, do you want the expression that would produce the exact answer?)
Where's #2 part C?
I see you already answered, but just two decimal places is fine. I will be sure to be more specific in the future. :)
Also, there is no part C, I used the heading from the last post which did have a part C and forgot to delete it. Ha! Thanks for participating!
Or now that I've gotten #1 as well I'm just going to turn in my answers based on what you've posted.
2a. 642,500.08 m
2b. sqrt(1156248400.0064) m, or about 34,003.65274056669... m (32,500 m south and 9,999.92 m east of the starting point)
You win! I have already transferred the money to your account. You can find the new problems here.