Answer:
6 dollars
Step-by-step explanation:
original price is 10.24
Discount = Original Price x Discount %/100
Discount = 12.8 × 20/100
Discount = 12.8 x 0.2
20%= 2.56
6b
x=1 or x=16
3/4x = 12 or 0.75x = 12
3/4x/3/4 = 12/3/4 or 0.75x/0.75 = 12/0.75
x=12/1 / 3/4
x= 4/4
x = 1 or x = 16
x=21
69+90= 159
180-159=21
