Answer:
It's a function, none.
<em>good luck, i hope this helps :)</em>
So this says
n*(-5/8)=-0.4
n(5/8)=0.4
n=0.4x8/5
n=16/25
Answer:

General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Algebra I</u>
Coordinate Planes
<u>Algebra II</u>
Distance Formula: 
Step-by-step explanation:
<u>Step 1: Define</u>
<em>Identify.</em>
Point (-7, 1)
Point (-7, -5)
<u>Step 2: Find distance </u><u><em>d</em></u>
Simply plug in the 2 coordinates into the distance formula to find distance <em>d</em>.
- Substitute in points [Distance Formula]:

- [Order of Operations] Evaluate:

Step-by-step explanation:
22/40 = 11/20 = (11 * 5)/(20 * 5) = 55/100.