La suma de los siguientes monomios 4x3*yz + (-3x3*yz) es... A) 7x6*y2*z2* B) + 1x3*yz C) 7x3*yz

Ihonestly don’t understand this at all

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

What does x = in this equation x+3+2x=x+5