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Find the sales tax and total cost of a wireless mouse that costs $15.99. The tax rate is 5.1%. Round your answer to the nearest cent.

The sales tax is $
The total cost is $
X

1 Answer

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Final answer:

To find the sales tax, multiply the cost of the item by the tax rate. Add the sales tax to the cost to find the total cost.


Step-by-step explanation:

To find the sales tax, multiply the cost of the wireless mouse by the tax rate. In this case, the tax rate is 5.1%, which can be written as 0.051 in decimal form. Thus, the sales tax is $15.99 x 0.051 = $0.81549. Rounding to the nearest cent, the sales tax is $0.82.

To find the total cost, add the cost of the wireless mouse to the sales tax. The total cost is $15.99 + $0.82 = $16.81. Rounding to the nearest cent, the total cost is $16.81.


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