Answer:
First, subtract 
from both sides.
Then, <em>divide</em> both sides by 4.
Answer:
b
Step-by-step explanation:
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Answer:
31?
Step-by-step explanation:
9514 1404 393
Answer:
3/2
Step-by-step explanation:
The scale factor is the ratio of corresponding side lengths.
larger/smaller = (21/2)/7 = 21/14 = 3/2
The scale factor is 3/2.
