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What is the equation of a line passing through the point (6,1) and parallel to the line whose equation 3x=2y+4

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?  

Write the expression as a single natural logarithm. 2 in a - 4 in y