HEB has dog food on sale this week. Brand A is on sale for 40 pounds for $50 and Brand B is on sale for 20 pounds for $ 26.40. Which brand of dog food has the better buy and by how much?

Brand A by $23.60

b

Brand A by $.07

c

Brand B by $.07

d

Brand B by $23.60

plz help I need to turn it in right now but no pressure