exam Maths Puzzle Numerical Ability

solve the inequality

-2k+12<30

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exam Other Question

The number of green beads varied inversely as the square of the number of yellow beads. When there were 8 green, there were 5 yellows. How many would there be if threre were 10 yellows? Solve.

A triangle has sides 3x + 7, 4x - 9, and 5x + 6. Find the polynomial
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