Valerie bought a guitar at a sale price of S = 0.8g, where g represents the original cost of the guitar. Which expression shows the sale price in a way that emphasizes the percent discount that she received? A S = (1 + 0.8). B S= (1 +0.2) g C S= (1 - 0.8). D S = (1 – 0.2) g

D S = (1 - 0.2)g

Step-by-step explanation:

The original price of the guitar was g.

She paid 0.8g.

0.8g = 0.80g = 80% of g

If she paid 80% of the price, that means the discount was 20%.

100% - 20% = 1 - 0.2

Subtracting 20% form the whole 100% of the price is the same as subtracting 0.2 from the whole price of 1.

D S = (1 - 0.2)g

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step-by-step explanation:

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