How many 5-digit numbers can be formed that do not contain the digits 0 or 8? Select one:
a. 16 807
b. 32768
C. 99 968
d. 40

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