exam Maths Puzzle Numerical Ability

If a license plate does not contain any vowels (A, E, I, O, U) or the number 5. How many different possibilities outcomes for the license plate?

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exam Other Question
Divide;

x^2 + 2x - 15 x^2 - 25
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4x^2 2x - 10

This problem has lost me on all senses to figure it out, can anyone help me with this one please? Thank you very much Could you please solve by using sustitution method. Please show details.
Thank you.

x - y = 3
3x - 2y = 3

Also please tell if it is independent, inconsistent or dependent.