Diane is using ribbon to create girls' hair barrettes. For a craft fair in Seaside, she made 15
small barrettes and 12 large barrettes, using a total of 153 yards of ripbon. Then, for another
craft fair in Allenville, she made 15 small barrettes and 11 large barrettes, which used a total
of 144 yards. How many yards of ribbon does Diane use for each?
