Hey! :)
The total cost of the item is the second choice which is $14,372.08. I arrived to the answer by simply:
1) multiplying the sales tax to the negotiated price (15640*.072 = 1126.08)
2) adding the sales tax to the negotiated price and the registration as well (15640+1126.08+106= 16872.08)
3) subtracting the trade in allowance from the computed value (16872.08 - 2500 = 14372.08)
Hope this helps! :)
Square root (3) < square root (pie) < 2
I did the test and the answer is 7.4 cm
good luck
hope it help!!!^_^
But i really need a name of this book and authors :)