3(16-10)^2 what is the answer don't use calculator

Which statements are true? see picture

Paint color preference children adults total 0.6 0.77 liked new paint color disliked new paint color 0.4 0.15 0.23 total 1.0 1.0 1.0 which value for x completes the conditional relative frequency table by column?

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square