40 yards of fabric are used to make 9 school banners. how many yards does each banner use? between what 2 whole numbers does the answer lie? i need the answer to be answered using fractions.

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning

Using elimination, what is -4x+2y=-12 4x+8y=-24

How many ordered pairs of positive integers satisfy xy=32?