a supermarket had bags of red grapes for $22.96 for 7 bags, they also had bags of green grapes priced at $9.60 for 3 bags. which type of grape is cheaper

Anyone know? will mark brainliest if correct

3382-299=3383- ? fill in the blank?

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.