exam Maths Puzzle Numerical Ability

Solve the problem.

Ron and Kathy are ticket-sellers at their class play. Ron is selling student tickets for $1.00 each, and Kathy selling adult tickets for $6.50 each. If their total income for 34 tickets was $144.00, how many tickets did Ron sell?

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exam Other Question
Graph 2x-4y<8
This is what I did:
-4y<-2x+8
-4y/-4<-2x/-4+8/-4
y<1/2x-2
Is this right....please help!! Multiply, using the vertical method.
(m^2 - 5mn + 3n^2)(m^2 + 4mn -2n^2)