What is the ratio of Start Fraction 4 over 5 End Fractionto Start fraction seven over fifteen end fraction? A. start fraction 7 over 12 end fraction
B. 1start fraction 5 over 7 end fraction
C. start fraction 11 over 15 end fraction
D. 1start fraction 4 over 11 end fraction

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.