hawna’s rectangular playroom is 4 feet long and 5 feet wide. She wants to cover the entire floor with carpet. How many square feet of carpet will she use?

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.