The program helped my son do well on an exam. It helped refresh my memory of a lot of things I forgot.
Owen Patton, UT.
Thanks so much for the explanation to help solve the problems so I could understand the concept. I appreciate your time and effort.
Adam Botts, FL
I think it's an awesome program.
Am writing this comment cuz am grateful for this program, specially the graphs that can be shown for inequality solutions thank you.
David Figueroa, NY.