Which equation does not represent the problem? sebastian's school bus averages 28 mi/h, including stops. one day sebastian forgot his backpack. his mom left home 15 minutes (0.25 h) after sebastian and traveled at an average speed of 42 mi/h. how long did it take sebastian's mom to catch the bus? 42t = 28(t + 0.25) 42t = 28t + 7 14t = 7 42t = 28t + 0.25