What you do is see the value of x in each question and see if it satisfies the requirement. If x is less than -2(like in number 1), you substitute it into that equation and solve for x
If x is greater than or equal to -2(like in number 2,3, and 4), you substitute the value of x into the second equation.
The money in your checking account, savings account, or money market account is considered liquid because it can be withdrawn easily to settle liabilities.
