Astained glass window in the form of a 3-by-3 chessboard has nine squares, each of which is colored red or blue (the colors are transparent and the window can be looked at from either side). determine the generating function for the number of different stained glass windows and the total number of stained glass windows.

The skating rink rented 872 pairs of skates during april and may.why? : if the skating rink rented three times the pair of skates in april during may, they rented 654 skates. 218 x 3 = 654then, if they want to know how many they rented during both april and may, then you just add 654 (may) and 218 (april) to give you 872 pairs of skates for both months.654 + 218 = 872hope this !