Maria invested $4000 at 3.5% simple interest she left the principal investor for 57 months Robert invested 3500 at 8.5% simple interest he left the principal investment for 42 months how much more total money did Maria have the robber at the end of their investments

Aconstruction worker needs to put a rectangular window in the side of a building he knows from measuring that the top and bottom of the window have a width of 8bfeet and the sides have a length of 15 feet he also measured one diagonal to be 17 feet what is the length of the other diagonal