Which of the following represents a constant from the expression given 152+2x+9
A
9
Св.
15
D. 2

Triangle xyz has vertices x(1,3), y(0,0)

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?

Which one ? is the answer and how to find this answer