A recipe calls for 2.5 cups of flour for every cup of sugar. You have making cookies for your family and only have 7 cups of flour. How many cups of sugar do you need?

If you were constructing a triangular frame, and you had wood in the length of 4inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no. explain your mathematical thinking