Afalcon flew 70 miles in 3 hours. what was the speed of the falcon?
speed = distance over time; 1 mile = 1609 meters.
a.10.4 meters per second
b.23.3 meters per second
c.52.2 meters per second
d. 93.9 meters per second

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