The coordinates of the point J are (-1,-3) and the coordinates of point K are (8,-3). What is the distance, in units, between the point J and point K?

For the equations below which statement is true ?

Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?

For a function f(x), a) if f(7) = 22 then f^-1(22) = b) f^-1(f(c)) =