Imagine you are looking at a bottle of salad dressing containing oil, vinegar, and water. you notice that the oil sits on "top" of the other liquids. this is due, in part, to the fact that:

Gather reliable information to brent make his decision. to gather this information, use newspapers, call insurance companies or look at their web sites, and review consumer magazines and web sites. also, look at the manufacturer web site or for information about gas mileage. list the sources you use and take notes.