Help me with these its just 3 multiple choice and 2 short response

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?

Which function represents the sequence? f(n)=n+3 f(n)=7n−4 f(n)=3n+7 f(n)=n+7

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.