DO the math, DON'T overpay. We make high quality, low-cost math resources a reality.
This solutions and problems are great brain exercises! As a "highly intelligent" victim of brain trauma, it is hard to find any useful therapy, so I am study math and science as diy brain trauma recovery treatment.
Thank you for the comment! We are happy to know our Problems of the Week are aiding you in your recovery. We have lots more if you want to see them, and we'll be making new ones every week!