Roy D.

Roy D. joined Socratic 6.756164383561644 years ago. Roy D. hasn't written a biography yet.

158,427 students helped

Level 5 in Algebra Level 4 in Precalculus Level 3 in Statistics Level 2 in Chemistry Level 2 in Calculus Level 1 in Trigonometry Level 1 in Astronomy Level 1 in Geometry Level 1 in Biology
45 Answers 13 Edits