Choose the best graph to match the given expression. f(x) = [2x]

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.

Which of the following shows the length of the third side, in inches, of the triangle below

Which property was used to simplify the expression? 3c+9 +4c=3c+4c+9