What are the coordinate pairs of x-9y=12

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.

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30

Is triangle jkl congruent to triangle rst? if so, what is the scale factor?