Maria enjoys her coffee only if she has 2 teaspoons of sugar and 1 spoon of Nescafe.Sugar costs 0.75 per teaspoon and coffee 1 per teaspoon.Her income is 20.Write its utility function and draw various indifference curves for this equation.Given his income constraint, how much sugar and how much Nescafe will he consume?Write the demand function for sugar and nescafe.