3 2/9 x 3/5 what is this answer

Can someone me with these two circle theorem questions asap?

Analyze the diagram below and complete the instructions that follow. how to find tan

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