In a drawer, there are 10 pairs of socks, 6 of which are white, and 7 t-shirts, 4 of which are white. If you randomly select one pair of socks and one t-shirt, what is the probability that both are white? Express your answer as a reduced fraction.

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (–4, 0) and (6, 0). the y-intercept of the first parabola is (0, –12). the y-intercept of the second parabola is (0, –24). what is the positive difference between the a values for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth