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Tree diagram to find the prime factors of 18

Acarnival sold tickets for $1.50 for adults and $1.00 for students. there were 54 tickets sold for a total of $70.50. write a system of equations to represent the number of adult tickets,x, and the number of student tickets,y. find the solution and explain what it means. i'll you if you me

Which is the graph of f(x) = (4)x? image for option 1 image for option 2 image for option 3 image for option 4