If r=5z then 15z=3y, then r=?

Which of the following describes the symmetry of the graph of y = x3?

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

Convert 3,200,000 to a scientific notation.