Answer:
b.
$7.68
Step-by-step explanation:
23.99 * 15%
23.99 * .15 = 3.60 off
23.99-3.60 =20.39 new price
now to use the coupon
20.39 * 20%
20.39*.20= 4.08 off
20.39 - 4.08 =16.31
23.99-16.31 = 7.68
He saved 7.68
-3
3x-8x=17-2
3x-8x=15
-5x=15
-x=15/5
-x=3
x=-3
