For this discussion we will look at the costs of increasing the number (and quality) of outlets in the average home, including both 120 volt and 220 volt equipment. The average number of outlets per room in a 2500 square foot home tends to be two or three in each space.
A tire (American English) or tyre (British English) is a ring-shaped vehicle component that covers the wheel's rim to protect it and enable better vehicle performance.
In this example, the R designates this tire as a radial tire. Radial tires have layers of fabric whose cords run at right angles to the circumference of the tire and whose tread is strengthened by additional layers around the circumference making it the most common type of automotive tire.