Maya just opened an online banking account she needs to pick a 3 digit code to complete transactions. To create the code, she can choose from the digits 0-9, but no digits can repeat. Choices

1/1000

1/720

1/729

1/504

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.