Very impressive work. Wish I could do this, too. You know my ultimate goal in terms of math:
A. Improve my word problems skills
B. Learn Calculus l, ll, and lll at a comfortable level
C. Never forget Precalculus.
We both know that I am not going to be a teacher. In April I will be 57. I will do my best to keep my math skills sharp. In fact, look for a new PM in about 10 minutes.