Please answer please

Name the most appropriate metric unit for each measurement like a length of an carrot

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

Agrasshopper weighs 0.89 grams. express the grasshopper’s weight in scientific notation.