Helphelphelp!! pls tell me which is true or false in order <3

0if x and y vary inversely and y=6 as x=7, what is the constant of variation?

Val and tony get paid per project. val is paid a project fee of $44 plus $12 per hour. tony is paid a project fee of $35 plus $15 per hour. write an expression to represent how much a company will pay to hire both to work the same number of hours on a project.

What is the slope of the line that contains the points (-5, 6) and (14. - 7)?