Answer:
1. natural numbers
2. positive
3. number line
4. zero pair
5. whole number
6. negative
7. integer
8. opposite
Step-by-step explanation:
This is my guess. Take it with a grain of salt. Have a great day!
Answer:

Step-by-step explanation:

Multiply and divide by the conjugate.
The conjugate is the denominator with the sign of the complex number the opposite of the denominator.

Quotient = 
The expression would be $0.20 x f. Once you figure out what the 'f' variable stands for, you have to multiply it by $0.20, and you will have your answer.
Answer:
17
Step-by-step explanation:
12+5