Please help me, this is like the easiest thing but I'm stuck

The product of sin 30 degrees and sin 60 degrees is same as the product of

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.

Let f(x) = x + 2 and g(x) = x2 + 4. find f(g(f(