What expression would make a zero pair with 5x?

"how does lena finally defeat the robots? ” this question will best be used to describe the story’s exposition. rising action. climax. falling action.

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Point r divides in the ratio 1 : 5. if the coordinates of e and f are (4, 8) and (11, 4), respectively, what are the coordinates of r to two decimal places?