Caleb went to the grocery store to purchase hamburger meat and hamburger buns for an upcoming barbecue with his friends. at the grocery store, hamburger meat sells for $1.49 a pound and an 8-pack of hamburger buns sells for $2.99. he plans on making 4 hamburgers from each pound of hamburger meat and for each person, p, to eat 1 hamburger. he used the expression below to determine the cost per person of the hamburger meat and hamburger buns.