Answer:
1,2,3,4,6,12
Step-by-step explanation:
12•1= 12
2•6= 12
3•4= 12
Not sure. If you put the picture up, I could help you
The building would be 100ft tall. You have to take 20/6 = ?/30 The difference between 6 and 30 is x5. Then all you have to do is 20x5 and you get 100ft.