



 
Hi Bethmarie, $7.5$ billion is $7.5 \times 10^9 = 7,500,000,000$ and $36$ million is $36 \times 10^6 = 36,000,000.$ Hence the fraction of the world population that is canadian is \[\frac{36,000,000}{7,500,000,000}.\] To convert that to a percentage multiply by 100. Penny  


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