exam Maths Puzzle Numerical Ability

Can someone help me on this?

What is the algebriac equation for:

A number less then 50 is 30

Thanks, Lisa

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exam Other Question

Calculate the perimeter of a figure if one side is 4.5ft,another side is 1.7ft., another side is 1.5ft., another side is 8.8ft, another side is 1.9ft., and the last side is 2.2ft.

Thanks! graph the linear equalities

3x + 4y <12
x + 3y < 6
x > 0
y > 0