"I can teach you math, science, engineering..."
...I've been using Excel since high school and use it almost daily to create spreadsheets for work. I've been using PowerPoint since high school and use it almost daily to create presentations for work. I took precalculus
in high school and as an engineer, I use all levels of math nearly everyday. I work as an engineer, so elementary math is no problem...
10+ subjects, including precalculus