Please help me with these it’s due TODAY ( This is Simplifying expressions in 7th grade)

What is the value of the expression "two less than six times the diffrence of a number and five" when n = 9?

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

Adriveway is 40 yards long about how many meters long is it