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Maths Puzzle
Numerical Ability
find the side of a square given a perimeter of
a.18 b201/2ft
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book Other Question
Joanie wants to save $90 for a gift. She begins by saving $.25 the first week. Each week she saves three times as much as the week before. In how many weeks will she have saved at least $90?
Solve for x; a, b & c are constants.
9x-b=c