9. $4.5 per can
.
Answer:
1. 4.5
2. 1.714285714
3. 14.28571429
4. 18.57142857
Explanation:
Divide 9/2 which you will get 4.5
Divide 12/7 which you get 1.714285714
Divide 100/7 which is 14.28571429
Divide 130/7 which is 18.57142857
