You need to raise a total of $1000 for your trip there are 20 days before you leave if you estimate that you will be able to sell 25 candy bars per day how much did you charge for each candy bar

Johnny rode his bike to a friends house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was unable to play. what was his displacement for the total bike ride trip? what could you use as a reference point ? show the steps to solve this problem.