Tell which is the better buy. Show your work. MILK 4 liters MILK 3 liters 3 L for $2.15 4 L for $2.90 SPAGHETTI SPAGHETTI 200 GRAMS 100 GRAMS 200 g for $1.00 100 g for $.55 EASTERN POTATOES 12 KILOGRAMS EASTERN POTATOES D 5 KILOGRAMS 5 kg for $3.80 12 kg for $9.00