Can u help me understand how to write a function for the rule "the output is 3 less than 5 times the input" thanks :)

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

Which compound inequality could be represented by the graph?

Is there an x intercept in the equation 60*1.15^x