Which integer represents a withdrawal from your bank account of $50

Which integer represents the situation? You deposit $50 into your bank account.

Express an integer: a plane descended 3000 ft

What integer would represent this real life situation? 
sea level 

What are integers?

Express an integer: a debt of $50

What is the opposite of -3?

Order the numbers listed below from least to greatest.

Which value is farthest from 0 on the number line?