20/100 = 0.20
0.20 * 9 = 1.8
9 - 1.8 = 7.2
The sale price of the DVD is $7.20.
Answer:
67.59
Step-by-step explanation:
12x0.80=9.60, 9.60x6=57.6, 57.6+9.99=67.59
Answer:
2/3
Step-by-step explanation:
Use the formula for finding gradient.
Answer:
s=13
Step-by-step explanation:
s=5q+8
plug in numbers
s=5(1)+8
solve 5*1
s=5+8
solve 5+8
s=13