The cooking club made some pies to sell at a basketball game to raise money for the new math book. the cafeteria contributed three pies to the sale. each pie was then cut into seven pieces and sold. there were a total of 91 pieces to sell. how many pies did the club make?

Well, if the cafeteria contributed 3 pies and they were cut into 7 pieces, there would be 21 pieces of pie.
If you subtract that from 91 pieces they sold it would equal to 70 pieces. You then divide that into 7 pieces (to make a whole) and you get 10.
So the cooking club made 10 pies

You need to include the original coordinates of the triangle to answer this. and how much does it translate (move left right up down)