Is y=2x+1 and 2x+y=7 parallel, perpendicular, or neither

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 expression is equivalent to (84+16)

Which polygon is she in the process of constructing ?