exam Maths Puzzle Numerical Ability

A triangular region has a perimeter of 66 meters. The first side is two-thirds of the second side. The third side is 14 meters shorter than the second side. What are the lengths of the three sides of the triangular region?

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exam Other Question

The relation:
-3x+4y^3=9
what does it represent a function, not a function, an even or odd function or a graph symmetrical with respect to the origin.
Can someone help me with this problem?

I need to write the following number in expanded form:

684

Thank you,
Ashley