Are the graphs of the parallel, perpendicular or neither
1.x-3y=6 and x-3y=9
2.7=4x+1 and y=-4x-2

Student price tickets to a movie are $1 and non student tickets are $2 . 350 tickets are sold and the total amount made is $450. there were 250 student tickets sold . true or false .

Which expression is equivalent to -5(3x - 6/7)

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?