Abdul uses 16 1/2 cups of flour to make 3 loaves of bread. At that rate, How many cups of flour would Abdul need to make 4 loaves of bread?

X+ y = 5 ; x - y =3 solve using linear combination

A50% increase followed by 33 1/2% decrease

During the election for class president, 40% of the students voted for kellen, and 60% of the students voted for robbie. 500 students voted in total. how many more students voted for robbie than for kellen? answer with work : )