Posted by **Chrysanne** on Thursday, October 22, 2009 at 7:46pm.

The following information shows a relationship between the amount spent perweek

on advertising by a small fast-food shop and the total sales per week:

Use this information to make a line graph and then predict the weekly sales associated

with the expenditure of $50 (per week) on advertising.

Amount spent 10 20 30 40

Sales 200 380 625 790

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