Answer: For Part A, Yellow is 5, 1.25, 2.5, and 3.75, while Red is 6, 1.5, 3, and 4.5. I don't know the options for Part B, so I can't solve it. Sorry.
Step-by-step explanation: Look at the first row. 5 quarts of yellow paint is 5/6 of 6 quarts of red paint. This shows that if we want to change from red paint to yellow paint, we need to multiply the red paint by 5/6. It is the same thing backwards. If we want to change from yellow paint to red paint, we need to divide the yellow paint by 5/6, which is also equivalent to multiplying by 6/5.