How are the rules for the division of signed numbers similar to the rules for the multiplication of signed numbers?

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?

The three sides of a triangle have lengths of 4x+3, 2x+8, and 3x-10. what is the length of the shortest side if the perimeter of the triangle is 136cm?

Point s has coordinates (4,2). if you rotate s 90 degrees about the origin, (0,0), what are the coordinates of s’?