Perfume can be purchased in a 0.6-ounce bottle for $18 or in a 2-ounce bottle for $50. the difference in price per ounce is? pls!

Which statements about the system are true? check all that apply. y =1/3 x – 4 3y – x = –7 the system has one solution. the system consists of parallel lines. both lines have the same slope. both lines have the same y–intercept. the equations represent the same line. the lines intersect.