Can someone show me how to do this?
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Mathematics, 21.06.2019 12:30
Anne is twice as old as bill, and bill is 3 years older than christie. the sum of anne s and christie s ages equal 72. find their age difference.?
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Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?
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Using only the digits 5, 6, 7, 8, how many different three digit numbers can be formed if no digit is repeated in a number?
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