If you get this correct I will give you brainlest 5 stars and thanked please help on it

Answer:
6:7 is 24:x
6:7is18:y
24/6=4. 4*7=28!
Therefore 24 : 28
18/6=3. 3*7=21.
Therefore 18:21
Please brainlest and thanks and 5 star rating! Your welcome and I am so happy to help you!
Step-by-step explanation: