London planes to repaint some classroom bookcases. She has 4 3/5 gallons of paint. All of the bookcases are the same the same and each requires 1/2 gallon of paint. How many bookcases will the custodian be able to repaint with that amount of paint?

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