What is the distance between -4 and -9 on a number line

Which statement illustrates the distributive property?

If the function m(x) has the point (5,2) on its graph name a point that would be on the funtion m(5x)

Renting a room at the willow tree resort costs $125 for 2 people. each additional person is $25. write an expression that shows the cost for n extra people