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Cairnarvon · Answer 1 · 2018-04-15T16:13:15+0000

1) 24 / 18 = 1.33 and 28 / 21 = 1.33
so the exchange rate must be 1.33

2)1080 - 720 = 360
360 / 12 = 30

so the change is $30 per year

3) The slope would be a straight line and the y- intercept would be +30

Hope this helps! :)

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