If Ana also have $90 to spend on food every month and face the same prices for junk food ($.5) other food ($1). Suppose that you cannot observe Ana' utility function, but you observe that each month She purchase 144 junk food and 18 other food (optimal bundle). In March 2003, in an effort to tackle obesity, the France (where the Ana live), passed a law introducing a 10-cent tax on junk food. Assume that, as a result of the tax, Ana purchase 120 junk food. What is the amount of other food that they purchase? indicate the new optimal bundle in a graph. Are other food a normal or inferior good? Explain. What is the overall amount of the tax paid by Ana? Indicate the tax on a graph