You're shopping for a guitar and find one
with an original price of $160. The store is
offering a 30% discount on all guitars. Wait!
There is an additional 25% off all purchases.
What is the sale price of the guitar?

$84

$160 * 0.30 = $48

$160 - $48 = $112

$112. * 0.25 = $28

$112 - $28 = $84

Use what you know.
Guitar cost =$160 w/ 30% off
30% = 30/100 = 0.30.

30% off means 30% of the price $160 will be taken off so that is why I multiplied 160 by 0.30 (30/100).

30% of 160 is 48 so I subtracted 48 from 160 which equals $112.

With an extra 25% off I repeated the same steps above.

25/100 = 0.25

$112 * 0.25= $28
$112 - $28 = $84

If you need me to break it down more just let me know. I HOPE THIS HELPS

D) the x-intercept represents adam's commission pay when he had zero total sales

It’s c. i’m almost sure