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Which equation represents a line that is parallel to the line whose equation is 3x-2y=7( show all work)

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?  

Find two numbers if their sum is 91 and the ratio is 6: 7?