1 Topsoil is also sold in bags, at $2-$5 a bag. 2  It takes roughly 18-20 bags to make a cubic yard, or $36-$100. 3  That works out to about $180-$500 for five yards; typically, bags of topsoil are only used for extremely small areas.
The system metaphor is one of the trickier parts of XP (Extreme Programming). This presentation is from a tutorial taught at several of the early agile conferences, and includes material supporting the exercises. CC-BY-SA. Published in: Technology, Entertainment & Humor.
Metaphor is a term for a figure of speech. It does not use a word in its basic literal sense. Instead, it uses a word in a kind of comparison. We run, and we also say rivers run. We may run into trouble, especially if we run up a bill at the bar. So a metaphor uses words to make a picture in our mind.