Hi I'm refereing to the case of AES Tiete expansion, I can upload the case just not sure how to upload a file on here

this is the question:

3. Considering the base-case assumptions, should AES bid at the price of BRL50/MWh? What is the minimum price AES could bid and still meet its investment return target? Calculating the bidding price under the optimistic and the pessimistic scenarios in which AES would be able to have the same level of returns. Do you believe that AES should still pursue this power plant?

Any help?