Answer:
1.) 12:20
6:10
2.) 30:50
6*5=30 and 10*5=50
(6:5 is the proportional relationship)
Explanation:
Part A: Since the base numbers are 6:5, you can multiply any number like 5 on both sides. They only have to be the same number.
Part B: Divide the numbers until you cannot any more. I divided them both by 6.