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Adrawer contains 12 identical white socks, 18 identical black socks and 14 identical brown socks. what is the least number of socks you must choose, without looking, to be certain that you have chosen two socks of the same colour?

Write the fraction 9/50 as a decimal if needed round to the nearest hundredth

Alicia puts $400 in a bank account. each year the account earns 5% simple interest. how much money will be in her bank account in six months?