exam Maths Puzzle Numerical Ability

I am stuck on correct answer for:

4y^2 - 6y over 2y =

I am not using any specific book. I am just practicing...

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exam Other Question

I am stuck on this problem. I am not sure what section this would be under so I guessed Combinatorics and Permutations. In the book its listed as Basic Concepts of Set Theory. I w Two, six sided dice are rolled. Which has the highest probability?
10 ?
9 ?
7 ?
4 ?
2 ?

Please help solve.