Can someone please help me with these 7th grade math questions

Haley buys 9 pounds of apples for $3. how many pounds of apples can she buy for $1?

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.

Consider the first four terms of the sequence below. what is the 8th term of this sequence?