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Maths Puzzle
Numerical Ability
If you know the height and area of a trapezoid can you find the lengths of its bases?
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5x+4=-11
The amount of a radioactive tracer remaining after t days is given
by A = A0 e^–0.18t, where A0 is the starting amount at the beginning of
the time period. How much should be acquired now to have 40
grams remaining after 3 days?