Thursday

Visual: What is Inflation?

 +----------+        +----------+
 |          |        |          |
 | time t1  |   ==>  | time t2  |
 | item x1  |        | item x1  |
 |          |        |          |
 +----------+        +----------+
                       cost 
                       price
                       salary = 

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Fire survival tips

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