One plane flies across the country with a path modeled on a map by the equation 2x−7y=−25. Select all the equations for lines that could represent perpendicular flight paths.
A. y=27x−6
B. 7x+2y=−10
C. y−13=72(x+8)
D. 14x+4y=41
E. 7y=2x+5

Aschool puts on a play. the play costs $1,200 in expenses. the students charge $4.00 for tickets. there will be one performance of the play in an auditorium that seats 500 people. what is the domain of the function that shows the profit as a function of the number of tickets sold?  

What is not true about kl and mn? what is mn? (show )

Find the commission on a $590.00 sale if the commission is 15%.