Well I feel in love with this boy but he got mad bc I got sick and my mom and my dad is sick and I told he was like I got to go like what the hack is he mad at me or what

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.