Answer:
Explanation:
Number 1, it would be 6 cups of yellow paint for every 9 cups of red paint to make three batches.
Number 2, the ratio would be 5:3 or you can always do like 10:6 or maybe other ratios but the most common would be 5:3.
Number 3,it would be C
Number 4, 15 cups would make 3 batches.
Reply back if you need an explanation.