exam Maths Puzzle Numerical Ability

Divide and simplify rational expression 3x^2+7x-6 over 3x^2+x-2 divided by x^2+7x+12 over -4x^2-20x-16

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exam Other Question

Hi, I'm not sure if this is in the right category. I need to simplify the following: Thank you for your assistance!

1. 8(x + 4) - (x - 5)

2. 28((1/4)z + (1/7))

3. 3 5. Business and finance: Under a new contract, the salary for a position increase from $31,000 to $33,635. What rate of increase does this represent?