I need help with #21 ASAP.. I need to get it done…. Show step by step please help me with it and if you can’t answer it don’t do it at all … Don’t answer it to get points

Simplify. 3(4+4x) (type your answer in with no spaces)

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.

Plzz ! need the answer asap! 7% of 980