a.  which is the better buy? why?

b.  You need to buy water for 60 people. How much money will you save by buying the better buy?
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3.90/12=0.325 eech

5.60/20=0.28 eech...kost less

If bi 60 av em...kost=60*0.28=16.8$

(16.80)
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