Can somebody help me please.​

You decide instead to take the train there. the train will take 135 minutes. convert this into hours and minutes.

Twelve less than a number is at most 20

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