12x - 3x + 11 3 4x - (17 - 9x)

Which expression calculates the speed in meters per second of an object that travels a distance of 100 m every 20 seconds

Answer this question! 30 points and brainliest! only if you know the answer.

It took alice 5 5/6 hours to drive to her grandparents' house for . on the way home, she ran into traffic and it took her 7 3/8 hours. how much longer did the return trip take? write your answer as a proper fraction or mixed number in simplest form. the trip home took __hours longer. ?