Pj is decorating pupcakes for rocky’s birthday party. her color scheme is black, purple, and green. she will use this spinner to determine the color of sprinkles on each pup cake.

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.