iluvreading
Price of the item: $12.99 what is the item price with a 5 % sales tax.



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anonymous
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\(12.99\times 1.05\) and a calculator

iluvreading
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do i use part=percent x whole

ParthKohli
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Calculator's for newbs.

ParthKohli
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I approximate stuff.

anonymous
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you can estimate
10% of 13 is 1.3 so 5% of 13 is .65

ParthKohli
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\[12.99(1 + 0.05) = (13  0.01)(1 + 0.05)\]FOIL.

ParthKohli
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That one is, if you don't want to approximate. ^

iluvreading
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i think approximating is easier

ParthKohli
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It always is.

iluvreading
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soo do i add .65 to 12.99

ParthKohli
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Yes.