1. what is the solution to the system of equations? 3x - 6y = -12 x -2y = -8 (a) use the substitution method to justify that the given system of equations has no solution. show all work! (b) what do you know about the two lines in this system of equations?

What is the value of x? enter your answer in the box. (cm)

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.

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base