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Which expression is equivalent to (3^2)^-2 a.-81 b.-12 c.1/81 d.1/12

What are the digits that repeat in the smallest sequence of repeating digits in the decimal equivalent of 24/11?

50 people men and women were asked if they watched at least one sport on tv. 20 of the people surveyed are women, but only 9 of them watch at least one sport on tv. 16 of the men watch at least one sport on tv. make a a two-way table and a relative frequency table to represent the data.