Answer:
4u³
Step-by-step explanation:
2/3u × 4/2u² = 4/3u³
4/3u³ × 3/1 = 4u³
I think your gonna have to do this one on your own because this is a whole experiment. Just saying. :)
here's the answer to your question
100 + 80 = 180
20/100 X 180 = 36
selling price $36