What is the name of the point where the three altitudes of a triangle intersect?
A) centroid
B) circumcenter
C) incenter
D) orthocenter

Find m∠PQW if m∠WQR = 130°, m∠PQR = 16x, and m∠PQW = 3x.
A) 5°
B) 10°
C) 30°
D) 40°