You always work from the parenthesis first because of order of operation. You have 12( because 2 times 6) then mulitply 12 times 10. You get 120 then you multiply it but itself 3 times. 120 x 120 x 120= 1728000
In order to find the answer, we will have to add the initial costs of the items together, then we will calculate using the formula for percentages to find the tax rate.
<u>Calculate the percentage: </u>
<u>Add the sales tax:</u>
Which means the two items along with an 8.25% sales tax costs "$169.96 dollars."