Factorise

10ax²+14a²x ​

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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.

Find the maximum value of p= 4x + 5y subject to the following constraints :