Qd,1 = 21- P1 -3P2 +P3 [and] qs,1= 5P1-10 qd,2 = 20 - P2 + P3 [and] qs,2= 5P2 -8

qd,2 = 8 - P1 - P3 [and] qs,3 = 2P3-1

Write a corresponding real world problem to represent 2x - 125=400

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.

Astore has apples on sale for three dollars or 2 pounds how many pounds of apples can you buy for nine dollars if an apple is approximately 5 ounces how many apples can you buy for nine dollars