book Maths Puzzle Numerical Ability


s2</sup> 1
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13s2</sup>-13s 13s-13</PRE>

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how do you put y=x on a coordinate grid A phone company charges $1.00 for the first three minutes of a long-distance call and $0.30 each for additional minute. A 4% federal tax is then added to the coast of the call. Find the total cost of a 23 minute call.