25(cards per month) x12(months in one year) =300 cards at the end of one whole year
I'm assuming you mean triangle angles?
If so, all angles add up to 180 so combine them and set them equal to 180.
51+82+5x+2=180
135+5x=180
5x=45
x=9
Answer: 24165, I think
Step-by-step explanation:
I just multiply the kids that were there by the words they were each given