You can eliminate 81 because we know 
The dot is on approximately 9.32 (my estimate) so I would square that number:
(9.32)² = 86.8624 so if you round this you get 87
Answer:
3.08 x 10^-3
Step-by-step explanation:
when putting into scientific notation, you must make it to where there is one number to the left of the decimal. If you move the decimal left, it equals a negative power, if you move it right, it equals a positive power.
The answer I got was A.)$56.
Hope this helps!<3
Comment if you need help on how I got that answer!
Answer:
How Do You Qualify for Math Olympiad?
Step 1: Take the AMC 10 or AMC 12. ...
Step 2: Take the AIME. ...
Step 3: Qualify for and Compete in Math Olympiad. ...
#1: Use Quality Practice Problems. ...
#2: Don't Lounge Around. ...
#3: Focus on Your Weak Areas. ...
#4: Beware of Tiny Mistakes. ...
#5: Schedule Regular Study Time.
hope this helps