Rational numbers

If the two numbers are of the same sign, then the quotient is a
1. negative number
2. positive number
3. neither negative nor positive number
The collection of rational numbers is denoted by the letter
1. R
2. W
3. N
4. Q
What numbers can be put in quotient form?
1. Whole numbers
2. Natural numbers
3. Decimal numbers
4. All the above
What is the additive inverse of 10/14?
1. 10/141
2. -10/14
3. 0
4. 100