plz help me this question

Consider a competitive economy in which there are only two goods, good a and good 1). Aggregate demand for good a is: Q? =40040Pa (1) Aggregate supply for good a is: Q3 =10Pa (2) Aggregate demand for good b is: Q? = 600 IOPb (3) Aggregate supply for good b is: Q: = 20m. (4) II. for each good i, find the price elasticity of demand and the price elasticity of supply at P*, which we respectively call mp and mi ; III. In this economy, the government wants to raise R = 1000 AUD while minimising the deadweight loss of the taxes introduced. Hence, the government needs to solve the Ramsey problem shown below. Solve the Ramsey problem and briefly comment on the results (less than 300 words). If you choose to solve it using the Lagrangian method, proceed by finding the FOCs as if you were solving a maximisation problem: the calculations are exactly the same; min x Qa + (5) Ta, To 2 (n5 - no) XT? P* 2 (15 - np ) 13 x P* subject to (Q:P:Ta + Q;P;Tb) = R (6) IV. What is the impact of a change in Ta on P