The answer is C. They are all no more than £1.10 off,
Answer:
6
Step-by-step explanation:
1. pie1, pie2, pie3
2. pie1, pie3, pie2
3. pie2, pie3, pie1
4. pie2, pie1, pie3
5. pie3, pie2, pie1
6. pie3, pie1, pie2
Answer:

Step-by-step explanation:
The point-slope form of an equation of a line:

<em>m</em><em> - slope</em>
<em>(x₁, y₁)</em><em> - point on a line</em>
<em />
We have

Substitute:

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