Answer:
x=12
Step-by-step explanation:
Using Proportion:



Answer: I think it’s b which is also 5
Step-by-step explanation:
In the link
if I did it wrong someone pls correct me
Answer: 12 21
Step-by-step explanation:
40 cm = 400 mm, so 400 mm / 18 mm = 200:9, or 22.22:1.