Answer:
scale factor is 1:3.5
Step-by-step explanation:
56/16 = 3.5
<h2>Greetings!</h2><h3>When expanding brackets, you simply multiply whatever is inside the brackets by what is outside:</h3>

<h3>Which would result in the answer being:</h3>

<h2>Hope this helps!</h2>
Step-by-step explanation:
5x-7+3x+27=180
8x+20=180
8x=160
x=20°.
hope this helps you.