How do I solve 2(x-2/3)=0

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

Enter the missing numbers in the boxes to complete the table of equivalent ratios.time (min) distance (km)? 36 9? 1512 ?

Iknow its nothing to do with education, but what type of thing should i wrote here? ? : ) its for mcdonald's btw.