exam Maths Puzzle Numerical Ability

It was found that 60% of American victims of health care fraud are senior citizens. If 10 victims are randomly selected, find the probability that exactly 3 are senior citizens.

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exam Other Question

for 11 - 12, write an equation that can be used to complete each table. copy and complete the table. for 13,14,15,16,17,18 compare. Write <, >, or = for each. The problem is number 23 on page 634. Problem is
(radical 3 - radical 2)(2 radical 2 + radical 3) . I am not understanding how to do this.