Pls help every questy need 4 to 5 lines answers

12. As consumer incomes rise, to which direction the demand curve shifts for restaurant dinners? 13. If consumers in general began to prefer margarine to butter, to which direction the demand curve for butter would shifts to? 14. If the price of imported wine falls, to which direction the demand curve for Canadian-produced wine would shifts to? 15. If the demand for a product it means that, at each possible price the quantity demanded is greater than before