19. y = 3x? - 12x Find the discrimanite of each equation. Then, determine the number of solution

need help with this step by step please and thank you

It takes a total of 6 hours to fill up an inground backyard pool using a standard house. a function can represent this situation to represent the amount of water in the pool until it is full a function of time the hose is running. determine the domain for the function

The table above shows approximate conversions from gallons to liters. what is the value of x?

Solve the given system of equations. 2y= -x+9 , 3x-6= -15