I have to make a Japanese presentation and I'd like to say "I'll explain japanese demographics using three graphs", but then realized I didn't know the counter for graphs.
Can someone help me out?
Use 「3つのグラフ」 or 「3枚【まい】のグラフ」. Whichever is OK, but maybe the latter will sound just a little bit more formal.
If you use three graphs in one page, say 「３つのグラフ」. If you use three graphs in each separate page, say 「3まいのグラフ」