Q = charge. Delta symbol = change, although it has another mathematical meaning. Please don't make me explain the rest (Iave = Current average https://books.google.co.uk/books?id=9izzXnnKzJoC&pg=PA33&lpg=PA33&dq=Iave+%3D+ΔQ+/+Δt&source=bl&ots=RtMhEgbwwc&sig=CgfA8TfXYXn1Xu8M6wBzFm6jcoU&hl=en&sa=X&ved=0ahUKEwiklsfe9vPOAhVhK8AKHfvlBtoQ6AEIHDAA#v=onepage&q=Iave %3D ΔQ %2F Δt&f=false) 1.602x10 blah blah blah is notation.
You're not don't worry. I just have a passion for maths and physics and chemistry. It's not too late though to learn, unless you don't mind waiting 6-7 years doing crappy work.