The table shows the results of rolling a number cube with sides labeled 1 through 6 several times. What is the experimental probability of rolling a 3 or a 6?

Enter your answer as a fraction in simplest form in the box.

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