To decorate the bulletin board, Wanda cut a length of ribbon into 7 equal sections, with a 16.2 -inch piece of ribbon left over. The Original length of ribbon was 170.9 inches.
im assuming you need to know the length of the 7 equal bits of ribbon. the original length of ribbon - the length of ribbon left over = 7x 170.9-16.2=154.7. 154.7/7=x = 22.1 each length of ribbon was 22.1 inches long
