What is 2 1/2 divided by 1/3

The perimeter of a rhombus with a side of 6 is 24

Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.

Using the side-splitter theorem, daniel wrote a proportion for the segment formed by luke segment de. what is ec?