Okay. So the bill was a total of $725, with 6% sales tax added. To find the amount of sales tax, all you have to do is multiply the amount on the bill by the percentage of tax. 725 * 6% (0.06) is 43.5. There. The sales tax was $43.50.
C because a number cube has six sides and there are six residents. So you have chosen correctly by picking C. You can say you decided that due to the number of residents being the same number as sides on a number cube that it would make sense to roll a number cube to predict the randomly chosen resident.
71614 is the answer, this can be found by simply solving this expression: 72000 - 386
C strong
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