Julia has a jar that contains a mixture of dimes and pennies. she reaches into the jar without looking and selected a coin. she repeats this process 14 times, which result 8 dimes and 6 pennies. based on these results, about how many pennies can she expect if she randomly select a total of 70 coin a.24 b.30 c.40 d.53

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