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The first answer is C.
$70.00 * .08 = $5.60
$70.00 * .20 = $ 14.00
$ 70.00 + 5.60 + 14.00 = $ 89.60

The second answer is B.
The formula for percent increase or decrease is: Amount of difference/original amount.
(49-37)/(37) = 12/37 = 32.4% increase

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