Math: what is 15/95 simplified

Can someone me with my hwplz(only the circled ones)

The sum of two numbers is 12 and their difference is 18 what are the two numbers

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.