Kelly flies a distance of 2,100 miles, the trip takes 4 2/3 hours. What is the airplanes unit rate in mph and at the rate of speed how many miles will the airplane travel in 1 1/2 hours?

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