Answer:
Step-by-step explanation:
A number being n and the product meaning multiplication.
1 . 489
2. 3
3. 4.9
4. 28.5
5. 6.15
6. 22100
7. 25400
8. 0.5
9. 0.14
10. 0.973
6750J
30^2=900 900x15=13500 13500/2=6750
Answer: 640-720
Answer(s): <u>15m</u>
<u>20(m-0.25m)</u>