Answer:
6
Step-by-step explanation:
I am thinking it is 6 because you can just look at b and it looks the same
so I think it would be the same answer
Answer To Question (A)
4.9 lb of zinc produce 8:5:7
Answer To Question (B)
You'll need 1.7 pounds of zinc and copper in a ratio of 2:7:9.
Hope That Helps ;)
Step-by-step explanation:
I hope this will help you