Free brainlist and 10 points if you answer 9+10

Asailor is looking at a kite. if he is looking at the kite at an angle of elevation of 36and the distance from the boat to the point where the kite is directly overhead is 40 feet, how high is the kite?

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)

Ineed the solution to this problem and the steps.