Please answer this :)

Can someone answer it, and plot it, for 20 points and brainliest answer? p. s. they're the same ! : )

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 angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles