exam Maths Puzzle Numerical Ability

Are the following lines parallel, perpendicular, or neither?
L1 with equation x - 5y = 10
L2 with equation 5x + y = 5

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exam Other Question

Can you plese help me with the following?

I need to solve and graph the following equation and interpet the result:

2x-3y=6 and 2x+y=-10. Adult tickets for a play cost $17 and child tickets cost $10. If there were 33 people at a performance and the theater collected $421 from thicket sales, how many children attended the play?