The ratio given is 4:5 so you do 5divided by 20 which is 4 and multiply 4 and 4 and get 16 so your ratio is 16:20
Answer:

Step-by-step explanation:
I have a app called photomath, I really hope this works.
No. 9% of 6,342 is 570.78. Rounded, it's close to 600, but not exact.
Answer:31 or 30.5 orrr 61/2
Step-by-step explanation:
quick mathz