Step-by-step explanation:
[tex]1)240 \times .3 \\ = 72 \\ 240 - 72 = 168 \: net \: price \\ 2)800 \times .2 = 160 \\ 800 - 160 = 640 \: net \: price \\ 3) \frac{480 - 408}{480} \times 100\% \\ \frac{72}{480} \times 100\% \\ .15 \times 100\% \\ = 15\% \\ 4)16000 \times .5 \\ 8000 \\ 16000 - 8000 = 8000 \: net \: price \\ 5) \frac{1200 - 900}{1200} \times 100\% \\ \frac{300}{1200} \times 100\% \\ .25 \times 100\% \\ = 25\%[/tex]
B.
amount of mark-up - new price
1. 6/36
2. 54/234
3. 18/138
4. 60/300
5. 6/26
