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Verified Answer :

bobeld

If n is the base price then the total cost is 1.075n  or 1.075n=total cost.

!00% of the price of the car + 7.5% tax = 107.5%  or 1.075 as a decimal.

So when you find 1.075 of the price (n) you are finding the total cost.

Notice how multiplying by the 1 in 1.075 included the cost of the car because 1 x anything is that thing.   1 x n = n

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