The scale factor is:

So you divide the corresponding lengths and the ratio you get is the scale factor. Hope it helps!
Answer:
1700
Step-by-step explanation:
The decimal form for nine and fifteen thousandths is 09.15
Answer:
30 ( I think so)
Step-by-step explanation:
Well, the total measurement 4 a triangle is 90. So 60 and 60 is 120 so it should be 30. If not I am sorry for being wrong.
Answer:
3/5
Step-by-step explanation:
ir would be 6/10 but simplified it would be 3/5