Answer:
As traffic volume increases, vehicle speed increases.
Step-by-step explanation:
Answer:

General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Geometry</u>
Volume of a Sphere Formula: 
Step-by-step explanation:
<u>Step 1: Define</u>
<em>Identify variables</em>
<em>r</em> = 8 ft
<u>Step 2: Find Volume</u>
- Substitute in variables [Volume of a Sphere Formula]:

- Evaluate exponents:

- Multiply:

- Estimate:

The third one should be -2(2x-6)=12-4x
Last one should be 2(2x-6)+4x=8x-12
Step-by-step explanation:
DC = DF + FE + EC = 3 + 14 +6 = 23 in 
Area of trapezoid ABCD

Answer:
Step-by-step explanation:
2/5x + 6=3/4x-8