I've spent hours trying to figure these three out, i'm probably over thinking them. will someone answer the following two math problems? i've set 20 points as the reward, and i will mark a brainliest.

For f(x) = 3x+1 and g(x) = x2 - 6, find (g/f)(x)

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.

What is the area of a rectangle with vertices (-8,-2), (-3,-2), (-3,-6), and (-8,-6)? units