Write a multiplication expression that shows 10 sixths

Can somebody me out with this question

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

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?