Answer:
![x=9](https://tex.z-dn.net/?f=x%3D9)
Step-by-step explanation:
| Given
| Distribute the 2 inside the parentheses
| Add 10 to both sides
| Add. <em>Optional; not included in your question.</em>
<em />
<em> </em>| Divide by 2 on both sides.
<em />
Answer:
2 x 10 x 4 + (4 + 10) x 2 x 6 = 80 + 168 = 248
x=1 f = 10(5.5)(1) = 55
x=2, f = 10(5.5)(2) = 110
110-55 = 55
2-1 =1
55/1 = 55
average rate of change = 55
Answer:
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