PLEASE HELP ILL GIVE BRAINLIST What is the domain of the function shown in the graph? GRAPH AND OPTIONS SHOWN IN PICTURES

Jan and wayne went to the store to buy some groceries. jan bought 2 cans of corn beef hash and 3 cans of creamed chipped beef for $4.95. wayne bought 3 cans of corn beef hash and 2 cans of creamed chipped beef for $5.45. which assignment of variables can be used in finding the cost of each item in the word problem on the left? j = the number of cans jan bought w = the number of cans wayne bought h = the unit price of corn beef hash c = the unit price of creamed chipped beef j = the total cost of jan’s bill w = the total cost of wayne’s bill