Which of the following statements is true?
a)organic compounds contain only carbon and hydrogen.
b)about 10 percent of all known compounds are organic compounds.
c)organic compounds always contain carbon and hydrogen.
d)organic compounds are produced only in organisms.

The pilot of a helicopter hovers at an altitude of 1200 feet over a park. the angle of depression to the base of a statue is 17 degrees. the angle of depression to the nearest park exit, in line with the statue, is 14 degrees. to the nearest foot, what is the distance from the statue to the exit?